So, my wife told me that the rear deck speakers in her '06 were not working.

I looked through the car, adjusted the sound to rear fade and sure enough, no sound coming from the back deck speakers.

I began to think, perhaps these rear deck speakers aren't included for a non Harmon Kardon system?

Any truth to that?

Just wanted to check before I had the dealer take a look.

Tried searching here and on the net and came up empty.

Thanks in advance.