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      07-18-2019, 10:54 AM   #172
TX3M
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Drives: 2021 X3 M40i
Join Date: Oct 2018
Location: MD

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Quote:
Originally Posted by gugin View Post
I did not disconnect the battery. I turned the engine off, left the car alone for a few minutes (until the screen above the head unit turned off), then opened the trunk and proceeded with the cover panel and amp removal. It was all completely straightforward. I have not experienced any adverse consequences from not disconnecting the battery.
2nd that. You absolutely do not need to disconnect the battery. Also, you can manually turn the vehicle off with a long press of the volume button.
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