Factory Bose radio buzzes/whines as rpm increases

manuel_hero

Original poster
Member
Aug 15, 2012
3
2008 Envoy Bose radio speakers whines/buzzes intermittently. Mostly when someone shuttle rear passenger door. Anyone have any suggestions what this could be?
 

The_Roadie

Lifetime VIP Donor
Member
Nov 19, 2011
9,957
Portland, OR
All speakers?

The Bose amplifier is in the rear cargo compartment (passenger side for a short wheellbase truck - driver's side for the EXT/XL) behind the side panel. The wiring from the head unit should be shielded and I guess yours is damaged somewhere near the door sill of the rear door. Remove the trim pieces and inspect all the wiring you can see for damage.
 

jrSS

Member
Dec 4, 2011
3,950
My 07 tb does this. Its the rear passenger door. Could it be a bad ground. U can hear the turn signals ...rpm increase and such. Bad ground?? Also when the rear entertainment center is turned on (which only then plays front speakers its all gone)
 

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