01GS300ty

Okay a this is really sad. Not long ago my stereo started going on the frits. It was like the stereo was possessed,lol!!! No seriously it would go on and off which was annoying, but then even when the stereo was off it would make a pop sound like it was trying to come on. Sounds like a grounding problem, but not sure. Anyway, heres the kicker.... now my dam navi system is down. The system is telling me that there is no disk reading! Im like what the hell there is a disk in there. So I try to reset everything by disconnecting the battery and still nothing. The info feature works, and so does the climate control, but no stereo or navi functions. I would appreciate any feed back on this issue to see if i could resolve it on my own before i take it in and get sold on having to upgrade!!! Thanx in advance all