I have a 2013 Elantra and ever since I switched from iphone 5 to a 6 plus the Bluetooth never worked correct. when I go to pair it, I get a message Bluetooth not ready press 1, my vehicle never shows up on the screen of my phone. its very frustrating to not have commands active as well as always having to use usb and aux cables to run everything. any advice would be helpful. the dealer wants $120 just to diagnos the issue.