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In Reply to: Adding Garage door opener posted by Richard V. on March 25, 2000 at 16:13:34:
Taken from http://www.eskimo.com/~dalus/bmw/e28/survey/e28_modification_history_jim_cash.html "cool blue"
Garage Door Opener(s) To hide garage door opener(s) remove circuit board from it’s case and solder a wire across contacts that normally make when you push the button. Splice the battery wire and extend to where you mount the switch. Wire the switch in series with the battery. I wrapped my 2 circuit boards in a cloth, tucked them in the front of the vent, just below the grill on top of the dash (don’t block movement of the vent arm), drilled a hole in the vent bottom, and threaded the wire down to the right of the radio. I got a window switch, to operate the 2 openers, and put it in the blank location to the right of the radio. You can put the battery anywhere as long as you extend the wiring, or, use car power & a voltage reducer so unit only gets 9 volts.
1990 535i