Volvo Repair: 86 Volvo 240 Stereo wiring, volvo 240, aftermarket stereo

Question
Hello,  I see your the expert on 86 volvos, I was looking for a little help wiring in a aftermarket stereo, someone had previously installed a stereo and I'm having trouble telling which wire is which.  Do you happen to know the color codes for the stereo wiring?  All I really need is power, ground and the speaker wires.  Any help would be greatly apreciated!

Thanks - Lars

Answer
Lars,
    You need a test light to id the hot wire...hot wire must be good on on run and acc....ground wire is often black...speaker wires can be matched to colors of wires hanging out of back of radio...or test wires with connecting different ones to output wires on radio.
   A less than easy place to be messing around with wiring....tucked into it's space.
          Good luck,
                   Bilbo