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      10-31-2011, 11:05 PM   #63
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Drives: 335i
Join Date: Jun 2007
Location: US

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I tapped the rpm signal from pin 21 (rpm signal wire) of the PNP harnass and ran it through to the cabin...All I have to do is hook the ground trigger wire to the ground of the nitrous relay, the rpm wire and the ground for the digital window switch..I only have one wire left which is the red wire for power and I have question.... once the setting is set on the digital window switch, can I hook it up to a on/off switch and will the settings be saved onto the chip? I dont want to run the digital window switch everytime I start the car because the instruction says red wire to 12+....I rather hook it up on my system arming switch which gives it power..Thanks if anyone can answer this question. The unit I am using is the NX digital window switch