I am taking the car into the dealership tomorrow for the free oil change etc and would like to present my radio problems again. The only components readily accessible are the 2 large speakers in the parcel shelf. They do vibrate to the touch but they produce very little sound and the material beneath the trim rings seem very solid, not a mesh.
I parked the car, turned on the Bose system to play an Eagles tune with lots of bass from a USB memory stick. I opened the trunk, folded down the rear seats and crawled into the trunk where I could hear the music and reach the speaker connections.
My understanding of sound systems is very rudimentary, I believed that the 2 large speakers contributed a lot to the sound and disconnecting them would be very noticeable, not so in this car. I disconnected one speaker with almost no difference in the music being played, disconnected both with almost no discernible difference again. Music still sounds awful.
These components are not working, why? Parcel shelf is solid, faulty speakers, head end not working?