Quote:
Originally Posted by JPWEraser
Not sure who is giving you this advice but it is an OEM accessory... I have one in my car as many many many others do with zero issues.
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+1
Absolutely no reason it would "mess up" your sound system, unless the installer wantonly disconnected/cut wires and harnesses during the install.
Though my E85 has it factory installed, I installed the kit in my E46 and have had no problems for several years.
Your making a decision based on inaccurate advice.