i got in my car today and put on my cd player in my 2 month old alpine hu(cda-9856) and it worked fine so did the tuner, later put a cd in and heard a pop, nothing would work at all, got back in the car an hour later and only the two back door speakers were working, i think, not sure if its the hu, which was already replaced the day after i got it from frying something inside, or if it is the stock bose amp which i suspect it is because when i tried to use the power IC on and off thing on the hu it did not shut the amp on or off., also when i would use the balance and turn it to the left nothing would work only to the right is there a fuse for the amp? or maybe one burnt out in the radio?or is it the fuse on the pac-oem2 interface that i think is installed to work with the bose,any ideas thanks anf6789