My Mazda 6 sport Bose radio stopped working (still looks like it operates but no sound coming out). Made a loud buzzing
Mazda 6 GH Bose Amplifier - AMP Performance
Insalling aftermarket subs with Bose system | Mazda 6 Forums
Amazon.com: PAC AOEM-MAZ2 Interface That Allows Replacement or Addition of an Amplifier in Select Mazda Vehicles Without a Factory Bose Sound System : Everything Else
Mazda 6GH 2008 - Bose GS1E 66 920A The history of a certain amplifier part 1 - 2
Mazda 6 Bose (2007-2011) Car Stereo pinout diagram @ pinoutguide.com