Quote Originally Posted by keva52
well my mustang is just a bish in general.. i went and got a cd player for it when i got it cuz the stock tape deck didnt work and more.. when i took it to best buy my passenger window didnt go down but once they installed it it started working and my door locks stopped working..
Yeah, it's possessed. Wire gremlins are a bitch.

But anyways, did you install/change anything before this started happening? Did it start after the radio was put in?