Oops. Back in January I didn't know the Edge and Lincoln are different in many aspects. Now that I've seen a few ten thousands I know most of them.
It's not often I sit in a vehicle to listen to music anyway, as I was in the MKX to watch a movie. In my own vehicle I either listen for the traffic report on AM or open the windows and listen to the exhaust
To me any extra weight of speakers,body cladding,spoilers or such just slows the car down in the 1/4.
I'm talking about the THX system in the MKX. I've never seen one in the Edge but plenty of the Lincolns are ordered with it (14 speakers), where are the nine you are talking about? You couln't get the one in the middle of the dash or the ones in the d-pillars or the tweeters in the doors?