Red is your 12 volt regulated, yellow is the 12 volt constant which serves as memory, black of course is a ground, your blue wire is a power antenna, and the rest of the wires are for speaker leads. You really need to buy a wire harness kit for it and a mounting kit as well. If not, pending on what factory oem spec are or if it as a factory amp then you have to bypass it as well but the wire kit comes with all hardware needed to do so. Don't ever cut wires and try to figure out whats what! You will do severe damage to fuses and burn out other components.
www.installdr.com/Harnesses/Ford-Wiring.pdf
The stereo color coded wiring diagram on a 2008 Ford van is what shows you how to hook up a different stereo system in the vehicle if you choose to do that. The purpose of the diagram is so you hook the new stereo up correctly and all features and speakers work properly.
Go to Google and type in "The Install DOctor". Go to the install doctor car stereo installations link and then once your on the site go to "quick radio wiring info". The wiring diagram is there. All color coded and in detail.
color coded diagram for 1989 Harley FXR
go to best buy or a car audio installation shop and buy a wiring harness (20-30 dollars) it it color coded and makes the job so much easier...
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The easiest way is to buy a wire harness adapter that covers your specific vehicle. They sell them anywhere car audio stuff is sold. It will plug into the wire harness plugs under your dash, and it will include a color coded diagram of each wired and what it is. Then you match them up according to the wires on the stereo you wish to install. If you don't have instructions with your radio, there may be a wiring diagram printed on its case, or just google for a wiring diagram based on your stereo's model number. Remember the wires aren't necessarily matched by color, but by their function.
The color coded jacket is so you can look it up on a wiring diagram for whatever it is to see what the wire goes to.
If you are using a wiring harness they are color coded. Otherwise, get a voltage tester to find the "hot" wire and the memory wire. you will have to trace the speaker wire.
I ordered and received a complete color coded wiring diagram from ahdol (American automobile enthusiats dgital online library. It was around $30 and I am using it now. It seems to be accurate.
if you shoot me an email and let me know that your the one that needs a wiring diagram or an fzr 600 i have a color coded diagram for a 91... which is pretty close to most of them that im aware of... jokersace@gmail.com A.J.