I'm thoroughly confused after reading that. I have an 06--shouldn't I already have this:
TPMS/RPA Systems (2003 - 2006 E46 and all year M3) uses the existing ABS/DSC/Wheel Spin Sensors and a control module to determine when a tire is low on pressure. The TPMS button ONLY resets and calibrates the system.
my button strip currently looks like this...
(BTW): Interesting the vert doesn't have the button for subwoofer on/off...
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