Sony Car Audio Wiring Harness for a Radio (what do each of the colored wires do?)

Question

I have a Sony CDX-71W Radio, I'm have trouble with the back speaker in my car, its not blown, its just not getting power to the speaker. I need to know what colored wire in the back of the radio gives power to the back right speaker, if your looking at the car from the rear of the car. I tested it with a multimeter and I'm not getting any readings at all. Anyone know where I can find a diagram for free on what each wire does, or know what each colored wires do what?

Answer 1

RED is hot when ignition is on, Yellow is hot at all times; Blue is for the auto antenna, Black is ground ,The other eight wire's are speaker wire's ,there in pair's, so that means you have four sets of speaker wire's,Two pair's for the front and two pair's for the back,in other words the solid  white wire and the white wire with the black line running down it is a pair. you must have a solid wire and a matching colored wire with a strape running down it going to each speaker.

Answer 2

usually the spear wire will have a line in the wire and the other wire will be a solid color so example green wire with white line and other wire will be just green solid is pos.with line is neg.

do all the wires you know are what first to narrow it down

hope this helps  

Answer 3

yeah