The radio that is fitted to my Mk2 16v (89) is the original line fit set that was specified when the order was first placed for the car... I have the original specification sheet that confirms this
The one your looking for is a BLAUPUNKT ATLANTA SQR 47
The unit still works perfectly, and the tape player still plays as new! real timewarp stuff this! I have the instruction book, exploded wiring diagram, service book, and fitting instructions, all in a neat plastic wallet, sorry to say, not for sale, but at least your in the right ball park as to what you want...
Tom