Which Jensen radio? The 212 or the 215? (The 215 has nav and bluetooth)
I'm guessing you have the 212 (surprising for a 2015 coach) since you asked about gps.
I switched my 212 out for the 215 (but even now the 215 is discontinued I believe):
http://www.thorforums.com/forums/f27...rade-1105.html
That will only get you gps/nav and bluetooth. With bluetooth, however, you can use the SiriusXM smartphone app in a pinch (of course this wouldn't work in the boonies without cell signal though).
Others have put even nicer radios in (like the Pioneer's).