Recently purchased a vehicle with the pioneer avic z140bh already installed and can not connect with blue tooth to play music or use GPS or use the wire to play music only can access av settings no other settings accessible . Tried resetting by disconnecting the battery, looked for pin hole reset button with no luck of one and still no luck of resetting and access. When trying to access blue tooth still says Steve's iPhone still connected ,previous owner, and u can't connect. PLEASE HELP WITH ANY SUGGESTIONS