Hello, new to the forums. I have been searching high and low for factory wiring harness schematics and can’t find an accurate one. I have a pioneer AVX-210 or whatever and I cannot get the thing to turn on. I had the factory one in and simply unplugged and pulled it out, I bought the harness adapter and believe it’s wired accordingly but I get nothing. Now when I plug my factory radio back in, it turns on but just lights up and it won’t do anything but try to spit out a cd IF you hit the eject button. Other than that, it just sits there lit up as if you turned it off but had the lights on. Trying to figure where I went wrong and there just doesn’t seem to be anybody out there that’s encountered this problem.

 

You ever get this sorted out? I'm in the same boat. Bought 2 different harnesses. Neither with power on the new radio. Connecting the constant and ignition from the radio to the constant from the truck work fine..