Hey guys, I have a similar problem: when I turn the car on, sometimes the AVIC starts up but I can't do anything. Then the unit starts searching for radio channels, and does all kinds of crazy stuff. This is very strange, because it has been working correctly for months now.... Don't know what to do... please advice?

Thanks

I had the exact same thing happen to my AVIC-x950BH. I suspected there was a wire shorting out, so I took my dash apart. I think it was the mute wire on the RCA harness that was the problem because it was not connected to anything and was just loose back there. I removed the RCA harness because I was not using it, I also taped off any loose wires so I don't have the same problem again. I haven't had ATT pop up since. I hope this helped!   

So I just cut the mute wire on my pioneer and hope the att stops. Here is what I am getting though, when I use onstar the x50bt basically shuts down. No maps, audio nothing. When I hang up it boots back up. On a side note the reverse cam doesn't come on when I put the car in reverse but it is on at startup regardless of gear. I have 2007 manual Sky. The gmos's are a pain! What happened to the good ol days when you just needed a harness?!

So I just cut the mute wire on my pioneer and hope the att stops. Here is what I am getting though, when I use onstar the x50bt basically shuts down. No maps, audio nothing. When I hang up it boots back up. On a side note the reverse cam doesn't come on when I put the car in reverse but it is on at startup regardless of gear. I have 2007 manual Sky. The gmos's are a pain! What happened to the good ol days when you just needed a harness?!