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[Announcement]
If you love radio, go digital with Citroën From Citroen UK Web Site: - Click Here - THE NEW CITROËN EZI-DAB AND AUTODAB UNITS HAVE BEEN DESIGN[more ...] By Dave_Retired. On Mon Apr 22 2013, 03:34pm Goto page: [ 1 2 3 ]

49364

Suffolk
Wed Aug 28 2019, 10:31am

[Announcement]
iPod Car Kit Direct for Car Kits and Car Kit adaptors iPod Car Kit Direct are the UK's Leading Experts for iPhone Car Kits - iPod Car Kit adapter's and o[more ...] By Dave_Retired. On Thu Jan 20 2011, 03:55pm

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13593

[Sticky]
Reprogramming multifunction Type C display I have a '08 Citroen C4 coupe, 1.6 HDi, LHD with RD4 MP3 radio headunit. My original Type A one line[more ...] By bambalys On Mon Jul 20 2015, 09:01am

15840

nikkouy
Wed Jun 12 2019, 10:30pm

[Sticky]
Standard CD player not reading CD and will not eject. My wife noted today in the 2007 C4 VTR coupe that the CD player stopped working as she was driving h[more ...] By BallinaOB On Tue May 12 2015, 12:26pm

11721

Arcadia
Fri May 12 2017, 04:58pm

[Sticky]
Help identifying head unit... Hello,I have a 2007 Grand Picasso Exclusive with the head unit in the attached image, however I am h[more ...] By nitsuanomis On Sun Jul 05 2015, 11:43am

12865

pauljnr
Fri Dec 09 2016, 09:11am

[Sticky]
C4 Adding iPod/USB MP3 support. Latest product from Citroën USB Box 9702.EZ [shadowbox={e_IMAGE}c4/parts/9702.EZ_ipod_large.jpg|Citroen USB BOX||left][/shadowbox] New iPod inte[more ...] By Dave_Retired. On Thu Jan 03 2008, 01:52pm Goto page: [ 1 2 3 ... 39 40 41 ]

614

457907

fryc88
Fri Oct 21 2016, 11:02am

[Sticky]
New skin themes for RT6 eMyWay Hi everybody,I have managed to make some new skin themes for the RT6 using the original graphic file[more ...] By f411 On Thu Sep 05 2013, 07:43pm

24860

giluriel
Wed Jun 10 2015, 04:33pm

[Sticky]
RT3, RT4, Navidrive 3D or eMyWay how do I know which one I have Hi, I have a C4GP 2007 (56 plate). How can I tell definitively if I have an RT3 or RT4?Also, where c[more ...] By iamkarlos On Wed Feb 12 2014, 07:58pm

12603

Dave_Retired.
Thu Feb 13 2014, 07:59am

[Sticky]
Retrofitting the RT4 NaviDrive (Basic Guide) Hi all,I'm writing a guide about how to replace the RD4 headunit, with the Navidrive RT4 version.Thi[more ...] By Biohead On Mon Nov 02 2009, 09:28pm Goto page: [ 1 2 3 ... 9 10 11 ]

157

162909

mariusmacavei
Tue Sep 10 2013, 12:18pm

[Sticky]
Type 'C' Screen Fix Tutorial Hi All,Let me start off by saying that this post has been created for the soul purposes that it may [more ...] By B13.CEE On Sun Jul 14 2013, 05:14pm

15737

Rich_Eason
Mon Jul 15 2013, 07:30am

[Sticky]
iPod and iPhone compatibility with the Citroën USB Box Thanks to rencar we now have Citroën/Apples guide to what models work with the USB Box - Click Here[more ...] By Dave_Retired. On Sat Sep 12 2009, 05:10pm Goto page: [ 1 2 3 4 5 6 ]

93127

loeb3
Sun Feb 24 2013, 10:26pm

[Sticky]
Everything I have found about the RT4/5 and USB (and phones and Bluetooth) Proceed with care - if your unsure, DON'T do this This was posted at C6owners.James C6 wrote ...Back[more ...] By Dave_Retired. On Wed Jun 13 2012, 09:33am

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[Sticky]
iPod interface CTACTIPOD006 Citroën OEM iPod Interface Hi all. I see lots of threads here about installing an iPod interface and I was wondering if anyone [more ...] By scanners On Mon Aug 23 2010, 04:39pm Goto page: [ 1 2 3 ]

50678

Dave_Retired.
Wed Mar 30 2011, 08:08am

[Sticky]
So you want to add an after market head unit, but don't know where to start? So you want to add an aftermarket head unit, but don't know where to start?As this crops up so ofte[more ...] By wozza On Wed May 12 2010, 07:45pm

22469

Dave_Retired.
Sun Feb 27 2011, 07:50am

[Sticky]
C4, MP3s, iPod and the potential poss of steering wheel functions I'm a new owner, so still finding my way round. However, it's apparent I need to do something to be [more ...] By Mostronero On Fri Aug 07 2009, 09:26am Goto page: [ 1 2 ]

39980

MCU
Sun Jul 11 2010, 06:13pm

Forum Threads

RD45 BT detection issue Hi there,Recently I got a 2nd hand C4 from 2010 with an original RD45 I guess (BT logo, mp3 logo, ha[more ...] By citrophyte On Sat Jan 14 2023, 02:28pm

1018

salliborm12
Sat Mar 28 2026, 05:38pm

New audio install, on going project. Update on page 3, LOTS OF PICS. Well though I would do this as a project thread. Only really started today on the build. I know a fe[more ...] By wozza On Wed Jan 19 2011, 06:30pm
Goto page: [ 1 2 3 4 ]

31993

BigJohnD
Thu May 29 2025, 10:29am

C4 coupe JBL amp and sub Hi all. I have two Coupes, one with the JBL audio system and one without. I'm going to be breaking t[more ...] By nobananas000 On Tue May 27 2025, 05:09pm

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403

Bluetooth for 2012 C4 Picasso Hi All,I'm sure this has been asked many times before, but to be honest it's confusing the hell out [more ...] By kronosone On Sun Dec 01 2024, 06:45am

660

BigJohnD
Tue Dec 03 2024, 04:24pm

Headunit Wattage vs. Speaker Wattage Hey everyone,I've currently bought some Pioneer T-GS1720f speakers (40wRMS/300w peak) and I was wond[more ...] By Miguel04 On Sat Sep 14 2024, 03:40pm

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525

C4 2006 (MK1) Front tweeters Hi everyone, does anyone knows what's the size of the front dash tweeters on a 2006 C4? And if anyon[more ...] By Miguel04 On Sat Nov 11 2023, 10:09am

1037

Miguel04
Wed Nov 15 2023, 09:05am

Rneg screen problems Hello Citro Friends, sorry for my bad english.Have 2006 C4 VTS 180hp petrol.Original came with rd4 a[more ...] By edzwux_vts On Sun Aug 20 2023, 10:31am

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787

Citroen C4 Aftermarket Headunit & Adapters Currently trying to fit an aftermarket head unit to the vehicle. Parts& Car for reference:Car:Ci[more ...] By Off_Da_Wall_ On Wed Jul 05 2023, 06:04pm

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745

2017 DAB and BT Hi. Just got a 2017 C4 Picasso Flair model yesterday. I used the Citroen app with VIN number to down[more ...] By Waj1234 On Thu Feb 16 2023, 12:18pm

1514

Waj1234
Thu Feb 16 2023, 05:58pm

Magnetic earth spade connector for external DAB I’m trying to fit an external DAB unit to my 2010 C4 Picasso, my problem is that I can’t find or gai[more ...] By Dellboy67 On Mon Sep 20 2021, 06:46am

3510

Mollers
Tue Jan 24 2023, 08:46pm

Navigation not working Hi guys, I have a big problem regarding my Citroen C4(B7). I have SMEG6.1.d.r19 software, and when [more ...] By Markovic0301 On Sun Dec 27 2020, 05:11pm

5238

Ap0qalypto
Wed Jan 04 2023, 05:13pm

Sat Nav Update Hello, I have a 2013 C4 Picasso II Exclusive + and l was wondering if the Sat Nav is upgradable and [more ...] By DaveRH63 On Thu Dec 30 2021, 07:36pm

2857

Null07
Sat Dec 03 2022, 06:38pm

hi need to pick your brains , no sound coming from radio as of today??? Hi there i have 54 plate c4 picasso mk2 diesel.not had any issues with radio before until today all[more ...] By themadmanc77 On Sun Nov 20 2022, 05:13pm

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752

Sat Nav problems C4 Grand Picasso Hi, I don't know if this is the right place to post this, but I'm finding this site a bit confusing [more ...] By Shan123 On Wed Jul 27 2022, 05:36pm

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1337

RD4 replaced by RD45 - cannot pair bluetooth devices C4 Grand Picasso 2007 Hi All,I've just swapped RD4 with RD45 on my C4 GP. Using Diagbox I made sure I have streaming and B[more ...] By borsodi On Fri Mar 24 2017, 10:33pm
Goto page: [ 1 2 ]

17452

c4gp_2007_pl
Tue Jul 05 2022, 06:22am

C4 picasso amplifier wiring issue Hello!One Year ago, I buy very cheap Philips NXT audio system for my C4 G/Picasso (speakers, subwoof[more ...] By Rajev On Sat Jul 02 2022, 01:25pm

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1891

Searching for replacement - upgrade RT6 (aftermarket - android auto maybe) Hi, guys, my RT6 (citroen C4 Grand Picasso 2012) is randomly rebooting. I changed the SD card, refla[more ...] By crsky On Mon May 16 2022, 12:08pm

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1993

2007 C4 - wiring the amp power cable inside Hello! I have a 2007 C4 hatch which I'm looking to upgrade the audio setup in.I've been trying to fi[more ...] By TheWildTree On Sun May 15 2022, 02:46pm

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1683

RT5 bluetooth RCA AUX adapter Hello everyone, my car is fitted with RT5 device with Bluetooth. Unfortunately, it is not meant to s[more ...] By Ap0qalypto On Sun Jan 16 2022, 09:15am

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2454

Mobile audio connectivity with RD4 in 2011 C4 Picasso We recently purchased a 2011 Citroen C4 Picasso VTR+ HDI S-A with a continental RD4 stereo fitted , [more ...] By Jeff831 On Sun Jan 26 2020, 09:43pm

5614

BigJohnD
Wed Dec 29 2021, 10:46am

Replace head unit and stereo to add bluetooth for C4 VTR, 1.6 HDI 2012 Hi, I am not very experienced with cars and this might be a stupid question. Anyway, I own a 2012 C4[more ...] By marbre On Tue Aug 11 2020, 01:13pm

5688

mastercare
Wed Dec 29 2021, 12:40am

Stereo not working Hi all.I have a C4 Picasso 2007 with a standard stereo radio / cd player.I recently found that the c[more ...] By KeithT On Wed Dec 22 2021, 03:24pm

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2418

C4 Grand Picasso Radio Cover Hi All,I have just become a proud owner of a 2007 C4 GP 1.6hdi EGS. I have bought an after market en[more ...] By Shep78 On Sun Oct 10 2010, 08:43pm

11099

Ap0qalypto
Wed Dec 22 2021, 07:29am

Dashcam I just fitted this cheapo Bangood camera. So far seems good quality. I will need to have a drive and[more ...] By Datadogie On Sun Aug 15 2021, 09:31am

4286

vexorg
Wed Aug 18 2021, 09:17am

Connect Bluetooth phone for music Connected a cheap Bluetooth to the AUX in the glovebox. Now I can play music from my phone. Not bad [more ...] By Datadogie On Mon Jul 05 2021, 06:31pm

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3460

RD45 display question Hi all im looking to change my rd4 radio to a rd45 and im not sure if my display is compatible with [more ...] By Lasiakutevs On Mon Jun 14 2021, 07:38pm

3827

BigJohnD
Mon Jun 14 2021, 08:32pm

Pioneer TS-G170C speakers I have the Philips NXT system and one of the tweeters has failed. I replaced the other a couple of y[more ...] By Dan_Sykes On Mon May 24 2021, 05:13pm

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3609

Speakers... Hi there, newbie on here but I signed up as I just wanted to check somethings:My sister has a 07 VTR[more ...] By TizzyD On Wed May 12 2021, 09:49am

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3616

Radio not what it used to be??? I have 2013 C4 Picasso that had a great radio with no issues, it was serviced some time ago by a Eva[more ...] By BigJAK On Fri Feb 19 2021, 11:07pm

4677

vexorg
Sun Feb 21 2021, 09:15am

USB or Dension on RD4 C4GP Cabling Options Hi, apologies if this has been asked before........I just bought an 07 C4GP with what I think is an [more ...] By pogbellies On Sat Jun 30 2012, 02:30pm

14054

jirkamo
Sat Oct 03 2020, 10:04pm

East Midlans Aux port activation. Why so hard? Located near Hinckley.2008 C4 Grand Picasso.RD4 head unit.I've been trying to get the aux port activ[more ...] By Cee4GrandP On Wed Sep 23 2020, 12:21pm

5016

BigJohnD
Wed Sep 23 2020, 04:06pm

Bluetooth Module /settings I'm missing 2008 Grand Picasso VTR+ 1.6 HDII've just purchased this car and so far I love it.I've been trying to[more ...] By Cee4GrandP On Sun Sep 13 2020, 07:57am

5171

Ap0qalypto
Mon Sep 14 2020, 08:01pm

Can't connect My Citreon app Hi,Can anyone help troubleshoot why My Citroën app won't see my vehicle. I've opened the app, added [more ...] By jjbrown84 On Sun Jul 14 2019, 04:31pm

6651

itd
Sun Aug 09 2020, 06:30pm

I want to fit an after market stereo to my C4 Just wondered if anyone could help I want to fit a JVC stereo model no KDG632 to my 57 plate Citroen[more ...] By storm On Sun Mar 17 2013, 11:05am
Goto page: [ 1 2 ]

55032

gittos
Sat Jul 18 2020, 04:21am

RD4 change Hi,Recently purchased a 2010 Picasso C4 with the VTR+ trim.The stereo has from what I have read is a[more ...] By demogorgan On Thu Jun 25 2020, 02:43pm

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4977

Myway external video input Hi I have a 2010 c4 with the myway sat nav head unit. It has the red, white and yellow inputs in the[more ...] By Arran On Sat Jun 06 2020, 11:40pm

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4860

audio/sat nav problems sorry if this is in the wrong place.I have the s100 smart series head unit in my c4 vtr 2005 now whe[more ...] By johnster83 On Sat Apr 18 2020, 04:12pm

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5174

Any Car Stereo with DSP Recommended I have added an amp in my Citroen. Now it plays music well except the car head unit is kind of old. [more ...] By Derionna On Sat Feb 22 2020, 05:02am

5675

ADAMNUR94
Sat Mar 28 2020, 08:43pm

Indicator and auto issues with sounds I have been searching for help but can find anything for my issue. When I put on my indicator, it m[more ...] By AFNottm On Fri Mar 13 2020, 10:01pm

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5058

Steering wheel stereo controls Hi,I have a 2007 C4GP with standard radio/cd and noticed today there is a button on the steering whe[more ...] By GALLOWAY2019 On Wed Feb 26 2020, 10:26pm

None

5183

Cannot connect a second mobile phone I have one mobile phone connected and it works fine. However when I try to connect my wife's mobile[more ...] By Malenibo On Sat Feb 15 2020, 09:12am

5585

routemaster1
Sat Feb 15 2020, 09:19am

XTRONS car stereo for C4 after having done a basic research on the web I have seen similar systemsto XTRONS PST19C4C with hig[more ...] By krerobjor19 On Sun Nov 24 2019, 10:39pm

6412

Mercadies
Tue Nov 26 2019, 09:56am

Can you change odometer back to mph via lexia or such for new head unit ? Hi, I've just installed a Android 8.0 media system made for the C4 in my 2007 C4 hatchback and every[more ...] By AllEuan On Fri Nov 09 2018, 09:27am

7073

strypes
Tue Nov 19 2019, 05:14pm

Play micro sd cards in factory stereo C4GP cheap Hi,I have given up thinking about changing the factory headunit but still wanted to use a USB or Mic[more ...] By GALLOWAY2019 On Tue Nov 19 2019, 01:28pm

6126

iscom
Tue Nov 19 2019, 03:09pm

Any front speaker recommendation for C4GP? Does anyone know what suits front doors best? I have a Alpine head unit, no dedicated amplifier. I h[more ...] By Bilazaurus On Wed Oct 30 2019, 01:40pm

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5484

C4 GP - Tweeter removal and front speaker crossover location Hi,I've spent some time looking for answers to my questions but couldn't find them. I would apprecia[more ...] By Bilazaurus On Mon Oct 07 2019, 04:15pm

8325

Bilazaurus
Wed Oct 30 2019, 01:14pm

Damn aerial. 2010 C4 pic. rubbish reception upon investigation the fakra at the end of the coax was damaged. I [more ...] By Suffolk On Thu Oct 10 2019, 05:41pm

5966

Bilazaurus
Sun Oct 13 2019, 06:05pm

Enable Aux Hi All!First post....bought my dads 1.6 HDI C4 on a 57 plate. Amazing run about for commuting.I want[more ...] By Bozzy On Tue Apr 30 2019, 10:35am

6786

Suffolk
Fri Oct 11 2019, 10:01am

Double DIN Just picked up a 2007 C4 Grand Picasso. Beautiful car, drives amazingly. But I want to change the he[more ...] By 1stPicasso On Fri Aug 23 2019, 01:46pm

10090

Nash
Mon Sep 16 2019, 08:31pm

Quadlock and reverse On the quadlock connector is there any reversing wires on it at all, I ask as I am looking for a pos[more ...] By Nash On Sun Sep 08 2019, 10:21am
Goto page: [ 1 2 ]

17000

Nash
Mon Sep 16 2019, 08:23pm

Aux1/Aux2 can't be activated. Hey friends,I went to a local workshop in order to activate Aux1 on my RD4 headunit. But it didn't w[more ...] By halit54 On Tue Mar 17 2015, 07:52pm

8849

Kangiev
Wed Sep 11 2019, 11:20am

Exclusive 2007 fitting new radio I have an EXCLUSIVE WITH THE Phillips sound system, the existing original head unit plays sound out[more ...] By Nash On Thu Jun 20 2019, 04:59pm

6542

Nash
Sat Aug 24 2019, 11:28pm

Sat Nav in Citroen C4 hatchback Hey every one I've bought a Citroen C4 hatchback 2016, very nice car automatic 6 gears, climate cont[more ...] By Arca On Sat Jul 20 2019, 04:08pm

6586

Arca
Mon Jul 22 2019, 07:58am

How to connect mobile music to Citron C4 1.6HDi 16v ( 110bhp ) ( DPFS ) EGS Exclusive Car model >C4 1.6HDi 16v ( 110bhp ) ( DPFS ) EGS ExclusiveHow to i connect mobile music to citron au[more ...] By ola On Sun Jul 21 2019, 01:25am

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1222

Philips amp location / replacement in C4GP Hi!I have C4GP Exclusive 2007 with Philips sound system. Some time ago it went silent and after some[more ...] By JLMA On Wed Jan 10 2018, 09:06pm

11491

Nash
Mon Jul 01 2019, 05:41pm

Sat nav voice on C4 Picasso Flair 2017 Hi all,Is it me, or are the voice files not very good for the sat nav? I previously had a 2012 Renau[more ...] By EssexBoi On Tue Jun 04 2019, 08:05pm

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5784

Replacing C4 2010 RNEG and Navigation to Android touchscreen HiI'm after some advice have a C4 exclusive 2010 with RNEG stereo and Navigation is it possible to u[more ...] By Goblin457 On Sun May 26 2019, 11:28am

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5906

C4 RT6 black screen that is always on-onlyvhave car less than a week Hi,Just joined as just bought a 2011 C4 this week. In less than a week screen dead so any help appr[more ...] By Techy On Fri Apr 05 2019, 09:46pm

7809

Timon2210
Wed May 15 2019, 01:38pm

N/S front passenger door Hi can anybody help I am after a N/S Front passenger door for my 2008 Citroen C4 in Icelandic grey.A[more ...] By garlandgrene1 On Sun May 12 2019, 09:18pm

6211

BigJohnD
Mon May 13 2019, 10:39am

Picasso stereo install problem Hi,A friend asked me to help install an after market stereo in his 2007 C4 picasso (the one with the[more ...] By Murry884 On Tue Feb 19 2019, 11:12pm

7449

BigJohnD
Wed Feb 20 2019, 11:09am

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