Almost completely useless

Almost 3 out of 5 times the Bluetooth mysteriously stops working while my iPhone6 is use. The phone ringing continues even after I have answered the phone and the ringing has a volume control of its own. Sometimes it rings too loud ( the whole car vibrates) and sometimes it is so low I cant hear it. The only thing good about the system is the radio seems to work perfectly. The Toyota dealership says there is no fix as of yet. (Part 2) Dealership wiped my software on my 4Runner and reloaded it. Wow, most of my initial problems have disappeared. Supposedly bad Entune software dumped into a lot of vehicles when mine was built.

Toyota2006 about Toyota Entune