I've got an issue with my CC3 that the seller doesn't seem to be able to give any guidance on, and it's a weird one. I installed a sub in my car right before this started happening, so it may be related. Every once in awhile, maybe every 5th time I start the car, only the sub has any audio, the rest is silent. After a lot of troubleshooting, I discovered that unplugging the canbus decoder and plugging it back in (while still running) was the only thing that would bring the music/sound back to the regular speakers. The sub is the only thing plugged into the harness, which has like 4 other RCA connections. My car only has 2, so it normally works with the other harness. I tried plugging in the 2 RCA cables for my car's factory amp to each of the 4 on the same harness as the sub, but I get no sound at all from any of them.
I also noticed that while my SWC and such work (canbus controlled), if I go to the car settings for canbus type, it appears to be reset. Has anyone run across this before ? The only solution I can think of so far is to wire a switch to the dash to toggle power to the canbus decoder when it goes quiet, since taking the stereo out every other day is bananas.