Stock rear camera with aftermarket head unit

[TahoeLT10]

Yes, i got the harness, it is really only two out of four wires that are being used. On mine is negative and one that jumps to 2.5v when i reverse. Other two are 12v and some other wire which are not being used by the harness. That being said, you could make your own harness.

 

[tazjamin]

Here is the reply from pioneer


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---------- Post added at 06:33 PM ---------- Previous post was at 06:32 PM ----------

Thank you for contacting Pioneer Electronics (USA) Inc.
You would need to have the installer check the connection of the reverse camera. If it works when you put the vehicle in reverse, we know it has power. I suspect they need to wire the camera to be powered on anytime the vehicle is on. Not just when the vehicle goes into reverse.

The installer will also need to check the video connection from the AVH to the rear display.
Our unit has a composite video output, the factory display may have a special connection and require an adapter.


Sincerely,


Rocky
Customer Service Representative



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---------- Post added at 06:33 PM ---------- Previous post was at 06:33 PM ----------

That was no help


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[TahoeLT10]

What was the original question to them? This is a blank response with no valuable input.

Just soldered 2 diodes into camera harness. Current flows as described in the diagram above. Waiting on 12v to 2.5v stepdown to come in to test.

 

[tazjamin]

ok so i got the new avh-4000nex and the idatalink maestro rr and i have it in a 2007 gmc yukon. i got it installed and my rear camera works only when i turn rear camera view on it does not work when that is off and i go in reverse. now the other thing is my rear video screen does not show my video ive tried every connection and i can get anything to work and it worked before with my stock radio. now with that said i have contacted idatalink and they are also trying to help me, they said the firmware is not out yet for the receiver. but the rear camera and the video screen doesnt go through the maestro rr box so please if anyone can help me that would be great and so far this is the only problems i have right now but havent checked everything yet because im trying to get this taken care of thanks



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---------- Post added at 10:51 PM ---------- Previous post was at 10:51 PM ----------

That was my question to them


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---------- Post added at 10:53 PM ---------- Previous post was at 10:51 PM ----------

The thing is my reverse wire works because when I turn it on manually there is a black screen i put it in reverse and the camera turns on


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[TahoeLT10]

If your camera works by manually turning it on but not in Reverse, your radio has to be set to wrong camera polarity. Mine does just that if my polarity is set to ground rather than battery. Take a multimeter and test your camera output. As of rear monitor, I spent a week trying to figure it out, but it also has to be the the setting in your HU. I got mirroring option and dual zone option. Does your radio support dual zone? Well, regardless of dual zone, rear video should work you just won't be able to listen to music on HU while watching a movie in the back if you don't have dual zone. What i did, i took my little tv to the car and tested rear video output. I knew that TV should work 100% if there is an output so this gave me an ability to troubleshoot and i came to realization that it was HU setting

 

[tazjamin]

That's what I figured is probably wrong with the video but the camera only works when you turn it on manually then put it into reverse does that make more sense it's a black screen then you put it in reverse and it works correctly it's just not turning on automatically and turning off like the stock radio


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[tazjamin]

Well I figure out the video part!! It's not in setting but in another part of the radio you need to click to pull up rear then click either mirror or DVD and it works now if I can only figure out the rear view camera then I can figure out if I have any more problems with it lol it is a dual zone radio so I don't know how to work that but now that I found this new area in the radio I'll try out other options to figure that out


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[TahoeLT10]

On mine, i had to slide the screen to the second page to turn on rear mirroring or DVD option. To make dual zone work, hit DVD for rear, it will start playing on the rear screen then go back to front settings and hit whatever you want (like dh radio). Now you can listen to the radio while dvd is playing in the rear (i use it with IR headphones).

---------- Post added at 10:26 PM ---------- Previous post was at 10:25 PM ----------

I didn't understand your statement about the camera.

 

[tazjamin]

Ok let me try this again so if you go back to the first page I have the picture of my settings now to turn on the camera the back camera input needs to be on, now it should work automatically but it doesn't when I put it in reverse, so I can manually turn it on by pushing camera view on and then it will go to a blank screen now when I put it in reverse it turns on perfect so thats how i know the reverse wire is correct then I put it in drive and it goes blank again and I keep trying to get some different settings on the screen when it's in that view but nothing works it has to be a setting because if the camera works in camera view which is the view that you want for your trailer it should work the automatic way but how and what settings is the main question now


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[tazjamin]

So come to find out the reverse wire from the maestro rr is not putting enough volts out to turn the rear view camera on automatically


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