Hi all! My 2006 TL (with NAV) just developed a weird symptom. The speaker makes one LOUD popping sound after I turn off the engine. Same pop sound after turn on the engine. Most likely its from the subwoofer. I spent about an hour searching on web. Some owners have similar issue, but they have aftermarket audios. Mine is fully stock. Except tinted windows, there is zero mod on my TL. And, I am the owner since new. Any idea where the problem is from? Many thanks.

 

I'd be interested to know as well as sometimes I get the same pop when I first start the car. Not often but once in a while.

 

Maybe my factory audio unit (or NAV) started to go bad?