View Full Version : whining sound with stereo upgrade is this common?

11-04-2003, 07:12 PM
I am going to have my stereo upgrade(MY 2003 530i) done professionally...

Is it common to get the "alternator whine"?

11-05-2003, 01:22 AM
No; In a proper installation(professional or not) the system should be isolated enough not to whine. Good luck and enjoy the system.

11-05-2003, 03:10 PM
i actually have engine whine after putting in a sub and an amp. what should i do to have it corrected?