Mine has been flawless. No issues at all with it. If my wife cant mess it up since she got it from me that's about as severe of use as it gets

But as mentioned you can always wire it differently later and my method takes two seconds to install.

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Just BMW's - All cars and trucks was two pages long
1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2011 535xi auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install