I have gotten used to having all of the amenities of my smart phone (engine diagnostics, GPS/Sat-Nav/over 500 albums/Hands Free Phone) that I am retrofitting everything (except the 88 coupe which already has a CRT in the dash) with BT/Aux. (click on .sig to see the herd)
That way whichever car I drive, I just drop the smartphone in a holder and go.
Two years ago I thought that 7-8" Windows tablets were the Next Big Thing but while the 2015 models have been dumbed down to uselessness (1GB RAM is not enough for Win8) smart phones have gotten more capable (just went from a 3.5" screen to a 4.8" and is
much easier to use/see).
Point is that IMNSHO the $1k-$3k "entertainment" packages in cars are kinda dumb because so much is tied to the car and not the occupant. All I really want is a good amp and speakers, BT, and an aux jack. Any more I mostly use the CD slot for a
cell phone mount. Puts it in the right place.
So have had a BT radio I bought some time ago and just found the plug so why not in the TM ? Can plug in the TV to the aux in and boost for my headset. Win-Win