N2V, whoever put the aftermarket radio in the car, changed the wiring harness, so you will have to find another one to rewire the orignal back in; also, check to see if your radio requires an amplifier (it probally will, if you have front and rear speakers in your car)- if that's true, too, you will need to go back and get an original volvo amp out of a donor car, too; no other amp will work with volvo radios. If it will help you any, I have radio wiring diagrams for a 90 740, but it should work for your year, too- at least, it's a start to get an idea of how to put the original back in. Send me your email address to mrnorris@hotmail.com,if you want the diagrams.

MikeN