Don't know if this is a universal thing or not but the radio code for our 96 850 wagon is written inside the lift gate next to the weather stripping on the driver's side. Appears to have been done at the factory as the PO didn't do it. Written in what looks like yellow crayon. Found it by accident when changing a tail light bulb. I believe all you need do is enter it. Wonder if the codes you've been given are wrong?


bl