Sorry for another audio question but I need some help. I wanted to put an aftermarket pioneer cd player in my 91 but Im having a bit of trouble. I was just gonna use the extra speaker harness under the dash but the only 1 I found is already connected into another harness. Do I dissconnect it from there ? I found the power harness ,with the JBL it looks like it has a power harness that plugs into the main power harness and splits in two for the radio and cd player.So I dissconnect that also? Sorry Im just a bit confused and last thing I wanna do is fry something.