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Old 05-08-2009, 02:24 PM   #208
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Join Date: Feb 2006
Location: London UK
Posts: 1,234
My Ride: BMW 335i 2007 Coupe
Originally Posted by spatimouth01 View Post
Purchased the cable from BMW and the Aux input appears without having anything plugged into the input. Works great!
That's what the resistor in the cable does, fools the HU into thinking something is connected so the AUX display appears.
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