E46Fanatics - View Single Post - Let's DIY aux input cable.
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Old 05-01-2009, 06:17 AM   #206
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Join Date: Feb 2006
Location: London UK
Posts: 1,234
My Ride: BMW 335i 2007 Coupe
According to the diagram it seems to have the components built in.

I've just ordered the parts, including the fly-lead to mp3 player for about 15 to make my own, not sure where the best position is to place the socket yet though.

I'm guessing the components aren't essential to use the input, the caps probably just provide some level of protection to the input and the resistor simulates a device being there so your "aux" menu option will show.
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