enter the code again, wait a bit to make it happy, then hit the power button. it might be just hanging up.

if that fails, call the dealer again: maybe someone got a number wrong
they might be able to walk you through it, as well


seriously, do yourself a favor and find an attractive bluetooth unit, maybe replace the tattered speakers, and join the 21st century

btw: this is a fantastic car for a good system, smooth and quiet. you are a lucky guy

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1991 300D