Last year my wife suprised me for my birthday and had the old Toyota deck replaced with a Apline and new speakers in the doors. I love it. About a month ago I'm driving down the road and it just goes dead. Ok. Finally get it back to the shop and they replace the fuse and all is good until last week, same thing just quite. Now after each time it went dead I have had a buzzing in the speakers that changes with the speed of the engines rpm's. So the more r's its turning the higher the pitch of the buzzing. So I tok it back in today and they put the deck on the bench and tested. Deck tests fine on the bench and works great. Soon as they put it in the truck it quits. so they left it out of the dash and left me to figure out whats going on which is fine since I didn't get a bill. Anyone have any thoughts on were to start? I have the Antenna out and I took out the sub in the back, those are the only audio related items I have touched myself. Thanks in advance