I just ran the auxiliary external microphone up into the interior radar movement alarm module. Drilled 3 holes and my calls are crystal clear on the other end.

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• 2004 E53 X5 3.0 ZSP (4/04 build date) Jet Black exterior/Sand Beige interior
• 2002 E46 325i ZPP (2/02 build date) Alpine White exterior/Hell Beige interior

Digital Competition Systems
The older I get... The faster I was...
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