Quote:
Originally Posted by NZBM
-BUMP-
Anyone experienced speaker whine with the stock stereo system?
I'm not sure of best approach in diagnosing this fault?
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speaker whine is usually because something in the radio that was shielded has become unshielded. Speaker whine is typically caused by interference from the alternator which is why it increases and decreases depending on engine speed. I'd take it back to whoever did the recent work and let them know you didn't have THIS problem before they worked on it.