davidard

Just to close on this issue, i installed the GMOS-04 and that completely fixed the problem. Plus the volume levels are much better now. That did the trick for me!

Thanks for your feedback. I'm going to try the GMOS-04 tonight and see if that fixes the problem. If not, i'll scrap it all and just go with new speakers.

THanks - one more question - would installing a Metra GMOS-04 allow me to take advantage of the bose amp and speakers? I agree on getting new speakers - just trying to leverage what i have until i'm ready to buy.

I installed a D3 in an '04 Chevrolet Silverado 2500 and love the unit but am getting the whining that many others have experienced. Here are the specifics Avic-D3 Factory Bose amp and speakers Bluetooth adapter XM Radio 2x closed loop isolators (this help, but haven't eliminated the whine, but they kill my mid-ranges). I talked to the Best Buy installer and he told me that the issue is created because the D3 has an amp and it is directly connected to my Bose amp. He said the solution is to bypass the Bose amp and go directly from the head unit to my speakers. I've never heard of