E46Fanatics - View Single Post - How do U make audio controls on steering wheel work with aftermarket HU?
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Old 04-12-2003, 04:37 AM   #3
Join Date: Dec 2002
Location: Oregon - Jakarta
Posts: 158
My Ride: E46 machine
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I thought it was wires that run from the steering wheel buttons directly to the HU, but it turns out to be infra red as a method of transmission.
Where would one put the interface then?
And the important question is where can I get one and how much? Any DIY on installation?
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