[rdass623]

the harness used on a modern blaupunkt stereo plugs into the cdr 220. I am sure with some hunting on e-bay you should be able to locate one. from there you will need to do some soldering. also you will need a plug for the speaker outputs. the low level ones (to the factory amp) may be a little harder to find. you may have some luck going to a junk yard and looking at some volkswagons, audis, and Volvos. from my understanding there were a few with similar stereo systems.