Q: Bluetooth problems with JVC car stereo

I recently purchased a truck that has the JVC Bluetooth head unit and it model number Kdsr80BT. When I was purchasing the vehicle the previous owner showed me that his android phone was connected to the radio with no problems for streaming music and making phone calls. When I got the truck home I deleted his phones from the radio and tried to pair my phone. I have an iPhone 6plus running iOS 8.3  It recognized my phone and my phone recognized stereo it would connect for 1 to 2 seconds and then it would say not connected unable to pair. I have turned my phone off and the stereo off and back on. I have forgotten the device and repaired with the same results. What else should I try to do?

thanks

chris