Installing Aftermarket reversing camera to an OEM head unit.

[Bluemerlin]

Good morning all, first post on here but have been using this forum for guidance for some time now, and thank you to @Pauly for accepting me.
So he is where I am, I’m looking to install a wired aftermarket camera from ADT and fit it to my OEM composition media head unit. However finding it difficult for guidance on such a topic, most are for oem cameras.

The camera I have is of NTSC format and I have already installed the Video feed input into the Quadblock at the rear of the headunit into pins 6 and 12 on the blue block.
The power supply I was planning on running from the quadblock also seeing as I was running the VGA anyway, pins 17 and 8 for +/- a wise idea? Reasoning behind it thought if I went to the rear reverse light, green and black/brown is it? It may not be a stable enough source due to PMW.
But the RCA video cable also has a trigger line attached, designed for aftermarket head units with a trigger output I’m guessing. this is where I’m stumped, where
Do I connect this red cable to? For oem I read there’s a white connector and pin 12 green/black is a reverse trigger, should I extend the small red line off the RCA to meet this? If so, what do I connect the other end of the RCA cable red to?
Does anyone have any insight into this that could possibly help?
I have added some pictures to try and show what I mean.
Tia
Blue.

 

[Bluemerlin]

I’ve also found this wiring set up but again not sure how it would trigger the camera to come on, or would it look at pins 6 and 12 on the blue quadblock anyway for a video input? And for Info it has factory rear parking sensors if that helps.
@Absolut5 i have tagged you as I’ve seen you all over the threads I have read on here and you know your stuff thanks again

 

[Deaky]

If I'm reading right, your not connecting a monitor and using your head unit. I would guess that the reverse monitor connection is used to turn on the monitor which your not using. The head unit uses the Reverse signal from the CANBUS to display the reverse camera. This will need coding.

 

[Bluemerlin]

If I'm reading right, your not connecting a monitor and using your head unit. I would guess that the reverse monitor connection is used to turn on the monitor which your not using. The head unit uses the Reverse signal from the CANBUS to display the reverse camera. This will need coding.

Hi Deaky, thank you for your reply. Yes the camera supplied isn’t going to a standalone display, hoping to get it into the headunit. Ah right I think I see what you’re saying, are you saying I wouldn’t need to wire into the reverse trigger for the camera as the head unit, would be told to look for a video input via the CAN network?
Personally I don’t have vcds, but I do have an OBDELEVEN, that allows to codingin cameras etc, failing that I have a trusted specialist not to far that could code it for me.

 

[Deaky]

From the wiring diagrams you've supplied, the camera needs a +ve -ve and reverse signal. The monitor signal, in your drawings is separate, although I don't know why. You could maybe connect the +ve on the camera and the reverse signal together so essentially the camera will always be on but you'll only see it on your head unit when the camera view is triggered by a reverse CAN signal.

 

[Veedubd]

Hi, i fitted an aftermarket camera to a discover media unit in my previous caddy, i found i had to use a power delay module to get it to work, also which screen do you have? i believe the colour composition is not compatible without a mod? as said i connected mine with the yellow input adaptor pinned to the blue connector, used the delay module to supply power direct to the camera then coded with vcds, you dont need the reverse signal as part of camera wiring that is done via coding automatically

 

[Mr Fi]

Hi all, I’m looking to install a similar aftermarket camera into my T6.1 and from what I read in this thread I need to simply install the cable from the centre pin of the phono plug to pin 6 and the outer ground (outer shield) to pin 12 on the blue connector.

Then connect the positive side of the reversing light via a voltage relay to power the camera when reverse is selected.

Finally, code the head unit to allow the video to be overlayed onto the factory head unit. Is that it?

Does the camera use the video ground for the negative side of the camera power or do I need to find a local ground near the camera for that?

Thanks for any advice.