For what it is worth,... I just installed one of these at work last week on an '89 cabriolet.... price for the circuit board was $82.00, our shops cost, from the dealer. HTH, Chris '88 16v Rocco '78 8v Rocco '80 Caddy '92 SLC '02 337 1.8T '00 GTI VR6 '97 Golf GL