A while back I was sitting in the back of my friends 09-10 C300. I noticed that he didn't have any sound coming from behind of the back seats. I told him about it, perhaps something was not working right. He never got back to me.

A month ago I bought my own CPO 09 C300, then recently crawled into the back seat and remembered about my friends car and the speakers. Nope, no sound coming from the back. I know it's suppose to have 8 speaker system. So that would be 2 tweeters, 2 front door, 2 back door, and 2 back?

Any C300 owners out there?

 

Just in case you have not yet found them, there are actually four speakers in the rear doors. Two per door, one each mounted high right next to the door opening handle (hardly noticeable unless you are looking for them) and the second speaker mounted lower.