Connecting factory reversing camera to RC330 in 2016 Amarok?

[dav1129]

I've successfully and easily swapped out the factory RNS315 with a RCD330 from RCD330.COM. Plug and play, everything works except as expected, the factory reversing camera.

Ddren at RCD330.COM doesn't sell the required adapter, so I bought one off eBay but have had no luck installing it. There are so many on eBay, which all look the same. Did I buy the right one? And if so, what to do with the black, red and yellow wires, which respectively, are marked GND, B+ and BACK.

[Dinogzav]

I am a little confused. You upgraded head unit and now want to connect the factory reverse camera to it, so you need the above adapter. Is that correct? As looking at the above the black/ ground wire is just an earth to any metal part. reverse detection wire or 'BACK' would go to a reverse light signal (could be taken from your reverse light or trailer plug if you have one) and B+ I am assuming just needs 12V but it doesn't say whether it needs ignition or constant power.

Does that help at all?

[dav1129]

I am a little confused. You upgraded head unit and now want to connect the factory reverse camera to it, so you need the above adapter. Is that correct? As looking at the above the black/ ground wire is just an earth to any metal part. reverse detection wire or 'BACK' would go to a reverse light signal (could be taken from your reverse light or trailer plug if you have one) and B+ I am assuming just needs 12V but it doesn't say whether it needs ignition or constant power.

Does that help at all?

Hey. I already have the pictured adapter. On the surface it should be clear but I wanted to be certain. I suppose yes, the ground needs to be grounded to the metal frame. Can it be the radio body itself? I saw this thread and this image and wondered.

Then yes, the yellow to 12V and I imagine just ignition. So I imagine I might pickup from the cigarette lighter which is just above? Which of the two wires to there would be positive or does it matter?

And for the red wire, I have no idea other than wanting to avoid running a new wire to the back. Surely there must be something behind the radio or at the fuse box which I can pick up?

[Dinogzav]

Yep you can ground to any bare metal part, so that will be fine. 12V from ciggie lighter will work but do know they have continuous power for a period of time after ignition is switched off which shouldn't matter really. Should really be fused too. Can't tell you which wire off top of my head, would need to test it to see which is ground and which is 12V. You could just get it off the head unit also.

For the red, there must be one for the old connection you had for the old head unit, you just need to find out which one it was which would involve testing it with a test light or multimeter.

[dav1129]

Yep you can ground to any bare metal part, so that will be fine. 12V from ciggie lighter will work but do know they have continuous power for a period of time after ignition is switched off which shouldn't matter really. Should really be fused too. Can't tell you which wire off top of my head, would need to test it to see which is ground and which is 12V. You could just get it off the head unit also.

For the red, there must be one for the old connection you had for the old head unit, you just need to find out which one it was which would involve testing it with a test light or multimeter.

Thanks again for checking back and offering suggestions.

Being short on time myself I took it to the professionals. An audio visual place specialising in home theatre and cars. You know the kind. But after doing much as you suggested, they still didn't get the reverse camera working. They took power and ground from the head unit. And the guy connected the red or 'BACK' wire to a 'trigger', which he found behind the glove box.

I can't believe he said I was good to good but without actually testing the camera. So after I tested it and got nothing the fun and games started. The tech made sure there was power between the ACC and GND wires. But I have no visual on whether the 'trigger' wire he picked up, is the right one. So I'm none the wiser on that.

Of course, the adapter could be faulty or the wrong one. But it seems to be the same as all those which are a dime a dozen on eBay. There doesn't seem to be any model specific RGB to AV adapters or a premium brands which might be better. The one I have has this marking.

Anyway, I'm going to have a go for myself, testing and picking up ACC using an add a fuse, and ground from the head unit. But then haven't the faintest where to look or test for the reverse trigger wire. I wonder if it could be one which goes to the parking sensor override button. The button near the hazard on the dash which if pushed, used to turn off both the camera and sensors. I'm not well versed on auto electric but seems to me this sounds plausible....

PS I have VCDS so have also gone into diagnostics to make sure that the reverse camera is enabled. I think, Ddren the guy who sells them on RCD330.com pretty much checks this as per the buyer's requirement before he ships.

[MIG]

If you want to rule out the head unit you could try the video feed into an old monitor with video input?
Also for testing, you could try manually triggering the signal with a switch that will rule out the module being faulty.

[dav1129]

If you want to rule out the head unit you could try the video feed into an old monitor with video input?

I can't remember where he got power to it or trigger signal to do this, however the tech did connect the shop's own reverse cam, which I guess they use to do just this, directly to the RCA input into the head unit. The unit displayed video feed of the guy's crotch area just fine and with reversing lines to boot. I'd have been surprised if it hadn't as the head unit is brand new.

So I guess that rules out the head unit but conversely doesn't rule the RGB to AV adapter in or out

Also for testing, you could try manually triggering the signal with a switch that will rule out the module being faulty.

Sounds interesting but I don't quite get how. As mentioned I'm not very intuitive about this things

EDIT PS I did later try wiring the red 'trigger' and yellow ACC wires together. And still no joy. I know that means the camera would always be on if the ignition was on, but it was a solution which saw on this YouTube video. But no camera feed, no joy

[dav1129]

If you want to rule out the head unit you could try the video feed into an old monitor with video input?
Also for testing, you could try manually triggering the signal with a switch that will rule out the module being faulty.

As I mentioned I had a professional shop try first but they didn't get a video feed from the factory RGB camera using the AV adapter. While ideally the ACC should be fused they did pick up ACC and ground from the head unit connector. They said they picked up the reverse trigger but I only have their say so.

Before I start all over again myself, is there a way I can test if the reverse trigger wire they picked and brought up is in fact, the correct one?

[MIG]

Before I start all over again myself, is there a way I can test if the reverse trigger wire they picked and brought up is in fact, the correct one?

Get a 12v test lamp to hook it up between the ground and the trigger wire, it should light up when you put the car in reverse.

[dav1129]

Get a 12v test lamp to hook it up between the ground and the trigger wire, it should light up when you put the car in reverse.

I imagine the technician would have done that then. He just didn't show me.

So to satisfy myself while I don't have a test light, I do have a multi meter. Should work just the same? And if the trigger wire tests positive, and ACC and GND do as well, them it would point to the RGB to AV adapter adapter being no good right? Especially if the technician rigged a video feed while in reverse using their test camera albeit connected directly to the RCA input i.e. not requiring the adapter..

[Dinogzav]

You are on the right track. Multimeter will be fine. I am guessing it is the adapter you have but can't say why. Put car in reverse and test with your meter on the red and to ground and see if you get 12V. Just to be sure, then put it in park and check again. If zero or close to zero volts then you have the right trigger. If you do then your RCA to the camera is faulty or the adapter is faulty. I assume the camera worked previously on the old head unit?

[dav1129]

You are on the right track. Multimeter will be fine. I am guessing it is the adapter you have but can't say why. Put car in reverse and test with your meter on the red and to ground and see if you get 12V. Just to be sure, then put it in park and check again. If zero or close to zero volts then you have the right trigger. If you do then your RCA to the camera is faulty or the adapter is faulty. I assume the camera worked previously on the old head unit?

Yes the factory RGB camera worked flawlessly with the original RNS315 head unit. And I've seen video feed from the test camera on the new unit. So really all I should need to be certain of is having the ACC GND AND TRIGGER connected correctly. If I have then yes, I guess the RGB to AV (CVBS) CAN BUS adapter must either be the wrong one or faulty.

Either way which one then to buy