I Just bought a 97 Gt Mustang.
Im pretty sure the Mach speakers are stock right?
Well He had a new cd player in the car and its pretty but w/e

When i turn on my lights and turn up the brightness w/ the sterio on i get a loud buzzing noise that wont go away.

I took it into a steriowarehouse and they said that u cant **** with mustangs systems w/o ripping them out and ther a POS and i need to rewire my whole car cause of the dumbass before me messed it up.

Anyone have any knowlege about this?

I was looking to put in some decent speakers 2 10's and 2 amps..

But yeah any help would be greatlly apprecated.

 

Sounds like alternator interferrence...not sure how to fix it though.