Alternator Feedback
12-14-2006, 04:59 PM
#1
Thread Starter
Join Date: 12-14-2006
Location: Maryland
Posts: 2
Alternator Feedback
Hello,
I am a technician at a Chevy Dealer looking for some assistance.
Looking for some input from owners who have Onstar. I am getting feedback only when connected to Onstar, compared it to 2 others and they both did it but it doesn't seem right and no other model I have found does it either. HHR's with Onstar are so few and far between here I have nothing to compare to.
I am a technician at a Chevy Dealer looking for some assistance.
Looking for some input from owners who have Onstar. I am getting feedback only when connected to Onstar, compared it to 2 others and they both did it but it doesn't seem right and no other model I have found does it either. HHR's with Onstar are so few and far between here I have nothing to compare to.
12-14-2006, 10:39 PM
#6
Senior Member
Join Date: 12-18-2005
Location: Middle Village, NY
Posts: 1,780
I have it all-premium radio with XM and OnStar. I never really noticed the whine until I put in a different Pioneer head with the Metra interface and a switch to Sirius. I called Metra and the technician there said that all of the HHR's he saw had the alternator noise, and that changing radios and using the factory amp like I did only makes it worse. He said that the remedy is to either use the amp in the aftermarket radio or use a different amplifier, both requiring a different Metra interface. I noticed that with the gain on the Metra interface turned down, the whine is less noticible but you lose loudness. I plan on running all new wires to my speakers then trying the head amp. But first I need to buy the other interface then I will sell my old one.
