hey fellas i got an ef ghia with the premium sound system package. ive been having alot of problems with my head deck, it plays as normal everything lights up normally although no sound comes out. i took it to an electrician he gave it back said he fixed it but still has the same problem, what seems to happen is that one day it wont be working the next u go over a bump and it works. before it comes back it crackles. i checked all the wiring and evrything is fine. although now it has stoped and no matter how big the bump it wont work! i took it to ford they said it has a dry joint somewhere and it will be a bitch to repair and the best they could do was exhange me for one that has been repaired with 12 months warranty at a price of $250! anyone else had any problems like this? any recomdations? any help would be good thanks guys!