I'm replacing the factory speakers right now and I don't have a wiring diagram. I started with the rear and in the r/r there is a light blue and dark blue wire both with white tracers and I don't know which one is the hot or ground. The l/r has a brown and yellow with a white tracer, so I figured the yellow was the hot side and the brown is the negative. Could anyone tell me which is which for all four?

 

http://www.andylphoto.com/fiero/wiring.html

 

Thanks. I guess the yellow wire is the remote power wire, correct?

 

Yellow is 12V ignition wire, if thats what you mean by remote power.

 

Yup, that's it.