Reverse camera install
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05-28-2011, 10:52 PM
Join Date: Sep 2004
My Ride: STG2 ZHP,E70 X5(DD)
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Yes a relay works well. Tap into the blue and yellow wire for the reverse positive signal. Use a 4 prong relay and use the switching prongs between pin 17 and ground. Also ground the actual ground of the relay.
Works like a charm.
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