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Old 01-04-2012, 02:01 PM
MRV99 MRV99 is offline
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Join Date: Oct 2007
Location: Naperville, IL
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I know I have had this option on every E70 and E60 that I have owned. Just increases the volume of the radio as you go faster. There is no noise suppression.
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2012 X5 50i ZAP(2VA, 336, 465), ZTP, ZPP, ZPS(6VC), ZCW, ZRC, 322, 4UB, 4NC, 610
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2011 X5 50i(lemon)
-- SOLD --
08 550 Msport
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