Not necessarily non Ford but everyone can do it to any model so I figured I would put this here. Its an article on how to add bluetooth to a tape deck to stream music to it, not even necessarily a car one either, works on household ones as well.
http://roofuskit.blogspot.com/2011/08/tape-deck-a2dp-conversion.html
http://roofuskit.blogspot.com/2011/08/tape-deck-a2dp-conversion.html