I have a 2010 FFH with Sony 12 speaker audio....This has to be one of the greatest disappointments in the vehicle. The sound is under powered, seems like it has a midrange audio only. When the auto sound control is set to on the sound quality sounds better when your up to speed, greater frequency and fuller sound still not great but when you idle or slow you go back into a can. If you turn it off your back to sounding like your in a can. I have the nav unit as well but my plan is to go to a high quality auto sound shop and rip the whole mess out and somehow still use the nav head unit if possible. Anyway if anyone knows about something officially wrong with this 12 speaker sony, like Ford is replacing, it would be helpful otherwise that thing has to go.