I have the uconnect 8.4 non nav head unit. would like to keep this and looking at upgrading my sound some. I really don't want a sub and take away my storage space. So I went to the only 2 local stereo shops in my town , one pushed new door coax speakers with a 4 chan amp or a 5 chan and a sub under my backseats. the other shop just said to upgrade to alpine coax door speakers and the 3.5 tweet and to line the doors with a sound mat, said the head would be fine with the speakers and if i want more then look at a amp.
Audio really has never been a engrossed subject with me.
thoughts.

THANK YOU.

Justin