2005 H2 with bose system, left side speakers have whizzing noise. the noise changes with rmp, or any other electrics operating.... when the radio turn on the whizzing sound comes on... the frequency or the noise grows louder when the ac is on, and whipper on... so messed up... had the same problem last year.. and got one of the speakers replaced and problem resolved.... but almost after a year.. not just one speaker have noise coming out... the whole left side have the problem... took into the dealership... and check problem not from speakers... any idea?

 

I had the same problem on my 93 pontiac grand am, turned out it was the ports for the speaker wires coming out of the radio were going bad.

 

thanks a lot... i will get that check out