Car downshifting noise after new amp


TENDERloin

CarAudio.com Newbie
Aug 8, 2019
1
0
California
Any suggestions on this problem.

I had a audio shop add a amplifier to the factory speakers on 10th gen accord.

When the windows are rolled up and the car downshifts, the downshifting noise comes through loud through what seems to be the speakers with a woob-woob effect. It feels like it rattles the car.

This this sound stops as soon as I crack the window

This happens even when the radio is turned all the way down.
 
Last edited:

Popwarhomie

Team Lethal Pressure
5,000+ posts
10+ year member
Jan 22, 2010
10,012
2,224
FL
Take it back to the shop.
 
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