RD4 Pinout

This unit is the RD4 or RD45 system, made by Continental.
Usually standard equipment unless another system is specified as an option. There are Single & Dual Tuner versions. RD45 features over the RD4: The RD45 has USB connectivity & integrated Bluetooth module supporting Phone & Audio Streaming.

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lancia58
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x 8

RD4 Pinout

Post by lancia58 »

Hi

Anybody has the pin-out of the back connector of an RD4 head unit

Thanks
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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EDC5
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Re: RD4 Pinout

Post by EDC5 »

Check out my thread here:

viewtopic.php?f=52&t=58078&start=90

On that page is the pinout (about half way down).
lancia58
(Donor 2022)
Posts: 711
Joined: 30 Nov 2010, 07:02
Location: Israel
My Cars: Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
x 8

Re: RD4 Pinout

Post by lancia58 »

Hi

Do the front twitters are connected in parallel to the front speakers ?

Thanks
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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EDC5
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Joined: 01 Jul 2017, 21:48
Location: N. Wales
My Cars: Citroen C5 RHR AM6
x 120

Re: RD4 Pinout

Post by EDC5 »

From the diagrams I've seen, yes the tweeters are connected in parallel. They have their own high pass crossover built into the tweeter housing.
Last edited by EDC5 on 05 Oct 2018, 20:06, edited 1 time in total.
lancia58
(Donor 2022)
Posts: 711
Joined: 30 Nov 2010, 07:02
Location: Israel
My Cars: Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
x 8

Re: RD4 Pinout

Post by lancia58 »

Do you have a link to the diagrams ? I just bought a C4 VTS in which after market speakers and a hands free system for Cellphone were installed. The problem is that the workshop who did it made a mess with the wires of the connector that is hooked to the RD4 and I want to revert it to the original wiring . Is there any thread that describes this wiring ( from the connector that is hooked to the RD4 )

Thanks
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
User avatar
EDC5
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Posts: 1216
Joined: 01 Jul 2017, 21:48
Location: N. Wales
My Cars: Citroen C5 RHR AM6
x 120

Re: RD4 Pinout

Post by EDC5 »

This is one I have, but it's from the C5. I'm not sure if the C4 will be different.
IMG_2965.PNG
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