Has anyone experienced this?? Radio starts to play while it starts to boot, but, reboots itself and repeats. Sometimes keeps radio on but with a black screen and does not reboot. Called Pioneer. Reset with a pin. Worked for a day, but returned to doing the same thing.

I know this isn't much help but I had a similar experience with my AVIC-D3 which turned out to be bad but only after years of use. I have not had the same issue on my AVIC-8000NEX.

i would check the power, ground, and ignition connections, it sounds like one of them is loose causing the unit to keep rebooting