Radios RD2 RD3 Differences

cachaciero · Post by **cachaciero** » 01 Oct 2011, 22:36

Anybody know what the difference is between an RD2 radio as fitted to a C5 Mk1 and an RD3 radio also apparently fitted to the same car.

cachaciero

cachaciero · Post by **cachaciero** » 04 Oct 2011, 12:32

No one! guess I'll have to find out the hard way

cachaciero

Gibbo2286 · Post by **Gibbo2286** » 04 Oct 2011, 13:42

Had a look in my handbook but it doesn't specify RD2 or RD3 just RDS Audio with carphone with CD changer or RDS Compact disc Audio System withCD changer or RDS Audio System with cassette player and CD changer

all * according to version or option.

Ps, I've just been through the Citroan parts list and there's no mention of RD3 anywhere, just RD2, RD4 and RT2, RT4.

There's an awful lot about 'configuring' to the vehicle according to RPO numbers in that section.

Post by **Paul-R** » 04 Oct 2011, 13:52

If it's just a visual difference then, according to Google's image search,
this an RD2 http://imageshack.us/f/180/2008424173318275.jpg/
and this is an RD3 http://www.dndservices.co.uk/citroen_pu-2471a-e.html

wheeler · Post by **wheeler** » 04 Oct 2011, 14:36

RD2 is just the standard radio/CD player fitted to the mk1
RB2 is a standard radio/cassette played (never seen one fitted to a C5 maybe not available in the UK)
RT2 is a primative handsfree carphone/radio (again never seen one fitted to a C5 maybe not available in the UK)
RT3 is a more modern CD player/radio/navigation/handsfree phone this is deffo available in the UK fairly rare though.
RD3 Never heard of this fitted in the UK, going by citroen service though it looks as though this may be a radio that is likned to an amplifier. Ive never seen a UK version of a mk1 with an amplified/premium sound system although there are references in documentation to this being available. Probably similar to the JBL system in the mk2 which might I add is superb.

cachaciero · Post by **cachaciero** » 04 Oct 2011, 16:57

Well I give you the following two images http://i1185.photobucket.com/albums/z34 ... 2/GS31.jpg which is a Clarion RD2 as fitted in C5's 2001-2004 and http://i1185.photobucket.com/albums/z34 ... /GS112.jpg which is a Clarion RD3 as fitted to and I quote Xsara's and C5's.
One thing I have established both "RD2's" and RD3's appear to come with a variety of fascia's as shown by comparing these with Paul-R's links.
At the back they appear identical and as Wheeler says there is reference to RD3 in the the Citroen Parts breakdown but it is not clear from the Citroen lists which part numbers relate to RD2 and RD3 and when they were fitted.
It gets even more confusing because there is also reference to Radio's manufactured by VDO and some where I have even seen a VDO radio with a fascia identical to the C5 unit.

I was more interested in the technicalities than appearance. The reason being that my radio is mated to the 6 CD stacker and the radio bit has a problem, as soon as it warms up it's rf sensitivity particularly on FM goes right down, sounds like it has no aerial, now this does not seem to be an uncommon fault with earlier C5's and as far as I read the failures seem to be equally divided between aerial amplifiers and the Head itself, in my case it is definitly the head.

So I went onto E-Bay to find another one and I found both an RD2 and an RD3, prefer the RD3 as it's newer and I can find the schematics on the web, it looks plug and play, yes I know I will have to program it with the VIN code, but wondered if the differences would affect the CD stacker, or being a C5 anything else for that matter

.

Anyway decision has been made the RD3 should be on it's way to me as we speak, will add to this thread when it's in and working.....or not!..... as the case maybe.

cachaciero

cachaciero · Post by **cachaciero** » 06 Oct 2011, 12:01

And the answer is........not a lot it appears. The only difference I can find is that the RD2 has a left and right synthesized voice input, normally joined together externally on the C5 at least.
The RD3 has only the one synthesized voice input presumably connected to both left and right channels internally.

From a personal point of view the question turned out to be superfluous as when I removed my ailing radio close examination showed it to be in fact an RD3, this on a 2001 car.

However I am still left with a puzzle, the Lexia Diag keeps saying I have a permanent fault with the aerial input, the aerial has been changed as has the radio but the fault still persists.

Interestingly the Lexia gives an option of installing an RD2 radio or RD3 amongst others, the radio itself doesn't seem to care which option you use

.

cachaciero

Post by **Paul-R** » 06 Oct 2011, 12:07

Isn't that a phantom fault? I'm sure I've read that here.

Post by **Paul-R** » 06 Oct 2011, 12:12

Yup, Fourth post down from Wheeler

http://www.frenchcarforum.co.uk/forum/v ... hp?t=31898

wheeler · Post by **wheeler** » 06 Oct 2011, 12:24

cachaciero wrote:However I am still left with a puzzle, the Lexia Diag keeps saying I have a permanent fault with the aerial input, the aerial has been changed as has the radio but the fault still persists.

This is known as a 'phantom fault' & if you check other mk1 C5's most of them will have this fault in them. Some versions of Lexia show phantom faults up with an asterisx next to the fault description or the text appears blue in colour. There are quite a few known phantom faults on the C5, for example In the instrument panel you often find faults relating to the invalid valuse sent by the BSI for engine speed, coolant temperature & vehicle speed. also in the com200 faults you will often find faults relating to transponder information not recieved and in the alarm ECU there is often a fault relating to the ultrasonic sensors.
They dont cause any problems & dont need to be dealt with. Some of them are corected with software updates.

EDIT: Ooops Paul beat me to it while is was typing.

cachaciero · Post by **cachaciero** » 06 Oct 2011, 12:52

Ah..! thanks for the info about antennas and phantom faults, saves me wading through Info Diags, the info about the Panel errors was a bonus, it's always there just havn't bothered to chase it down, now i don't have to

cachaciero

torq · Post by **torq** » 06 Oct 2011, 13:35

wheeler wrote: There are quite a few known phantom faults on the C5, for example In the instrument panel you often find faults relating to the invalid valuse sent by the BSI for engine speed, coolant temperature & vehicle speed.

Thanks!! You have just saved me €35. I was just about to buy new temp and engine speed sensors for exactly those faults!!

cachaciero · Post by **cachaciero** » 06 Oct 2011, 17:09

Widening the search for knowledge further........

1.) In the glove box on my C5 there are three RCA sockets Video and Audo Left and Right.... They don't seem to do anything and on the Radio wiring diagrams I can see no spare inputs for the audio, so does anyone know how this is supposed to work?

2) Does anybody know of an MP3 player that emulates the CD stacker?

cachaciero

Post by **Paul-R** » 06 Oct 2011, 19:09

cachaciero wrote:1.) In the glove box on my C5 there are three RCA sockets Video and Audo Left and Right...

Do you have to remove anything to see them or are they just there?

I must admit that they sound like an add-on although I'll have a CLOSE look at my car when I go out shortly. I have heard of signal inputs on later cars but not the PhI. Could your car have had a later glove box inner fitted?

wheeler · Post by **wheeler** » 06 Oct 2011, 19:50

On the mk1 the RCA sockets are factory fitted, they are only normally fitted to models with the colour navigation screen though.
They are for connecting AV equipment like games consoles, DVD players & camcorders etc.
There is an accesory one available for the mk2 that just has the audio inputs.
Have you tried plugging someting in with an output that is active & using the display menu to select it ? Obviously it wont display anything when the car is moving.
Not sure exactly where it connects directly to but i'd have a guess & say it may connect to the screen display ECU up behing the drivers side glovebox & then the audio may be multiplexed from there to the radio ??
There my be a configuration setting for it in Lexia, would really need to go through all the programing menus.
There are lots of different options for the MP3 inputs that emulate the CD changer. try this lot > http://www.connects2.co.uk/