Quote:
Originally Posted by henanwang
For me, high pitched noise from all tweeter are more noticeable cause sound frequency keeping change. Does anyone have same issue?
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Yes I had a constant, audible high pitch tone coming from all tweeters. They got some amplifier module from BMW engineering in Germany (which is located in the rear of the car) and that MOSTLY fixed the problem. There is still some high frequency noise coming from all of the tweeters but you have to put your ear up to them to hear it.