I agree with you entirely, I have been using an old Nokia for many years without any problems, other than it had to be manually connected once in the car - but sounded perfect when talking. I have been using an HTC does connect automatically - sound perfect. I stupidly decided to get an iPhone 5 as everyone says they are the bees-knees.
To be honest, I am very disappointed with the phone. Yes it has good points, but to use it in my year old Peugeot 308 top of the range car it is total rubbish. It paired ok, but when in use, it will not drop the line when finished, it jams the radio up, and the sound quality is muffled and distorted - so much so it could be a 1938 Crystal radio in use!!!
Since Bluetooth in cars is supposed to be safer, I am at a lose why such an expensive phone will not work, and in fact it is downright dangerous, as I am fiddling with radio controls and not the steering wheel stick control as it does not seem to recognise what I want to do.
I am now reinstating my HTC phone into the car when I am out and about and all my contacts now will have two phone numbers for me, a real backward step as far as I am concerning Plus having to pay for 2 contracts!!!.
Apple I am not impressed, I was a new customer of yours, but I will not be buying another Apple phone from you, and I am stuck with this one for the next 24 months... Yuk!!!