Can't Pair Phone

My Iphone was paired with my car at the dealership when I picked up the car. Yesterday I did the radio reset, because my Sound Group II stereo sounded like crap. Stereo sounds better, but now I can't pair the phone. I also got a en error message telling me there is a phone problem and the computer needs to be flashed by the dealer. There was a similar glitch on my 2013 Ram. I kind of hate bluetooth anyway, but was hoping it would be better in a 2015. Any suggestions on a self fix?