I found a guy who had one avc-rgb1 left. I made the modifications right away and it works great. Before I finish up the install, I wanted to wire it up for a backup camera. Firstly, I haven't tested the wire yet, but I assume that the backup wire going to the nav unit that is for backup light is +12VDC. (I can check that out. I want to hook this up so that that backup camera will come up automatically. In order to do that I will need a relay to control the switching of the composite video going into the avc-rgb1 between entertainment and camera. I could wire this relay up so that it is activated by the backup light signal. But in order for this to work the relay for switching between nav and avc-rgb1 must also be switched so that the avc-rgb1 is active. right now I have the avc-rgb1 relay hooked up to a switch. I think that I could have the backup light signal energize both of the relays, but I am not sure if this is safe since I would still need my switch connected to switch between navi and avc-rgb1. Has anyone else hooked this up. Can you give me some hints. I think that I could add a third relay that controls the ground connection and put my mind at ease, but I have to have more relays that needed. Please take a look at the attached diagram.
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