Same problem here ...
my iphone 4s used to work perfectly with all my BT speakers and my Porsche Cayenne 2007 with mObridge BT kit.
After the iOS6 upgrade I had to re-pair all BT speakers by deleting the existing profiles in the iphone. Pairing with Porsche/mObridge works for the handsfree/phone part but I cannot get A2DP streaming to work anymore, no matter how often I reset or delete profiles and re-pair the devices. iOS 6.0.1 did not change that either ...
One of the key reasons (aside of all the marketing/design/branding blabla) at least for me to purchase Apple products was that they just worked, especially with each other.
I used to be a strong Windows supporter but have fully converted to Apple ... I own or owned an ipod, iphone 2G, iphone 3GS, iphone 4s, AppleTV 1, AppleTV2, ipad 1, ipad 3, 13" MacBook Air 2010 and am thinking about getting the 15" MacBook Pro Retina ... ****, even my Wifi now consists of Airport Extreme and Airport Express!
Having a seamless Apple chain made life so much easier and more efficient, exactly like Apple have marketed their products over the last couple of years.
The ads where the Apple guys speak of "the best Apple experience ever", "the most simple and efficient way to do things", "the best we have ever made" are still in my ears ...
The most important asset Apple have created with their easy-to-use and simple products was pure customer satisfaction ... even to the extent they could completely turn a loyal Windows and Blackberry user like myself into an entire Apple geek ...
Now, however, it seems this philosophy and these mantras have all become obsolete ... and it's more important to just throw incomplete and faulty products out there fast because of fear of losing market share ... this is going to backfire, if you don't watch out, APPLE!
iOS6 is an absolute disgrace, starting with Apple maps which is not even close to Google maps, getting rid of the Youtube app without any notice and of course all these connectivity problems! Since I hopped onto the Apple train with my first ipod 7 years ago I have not once seen such a faulty release from Apple and for the very first time since joining the Apple followers, I am thinking about getting the products from alternative providers ...
It's a classic management mistake to just rush products to market and jeopardize customer satisfaction just because it seems the competition is gaining ground. For the first time in years, Apple is about to lose customers just because of product quality (something that had been declared an integral part of the company's strategy). For the first time in years,
Let's hope this is not the first in a series of mistakes ... in the mean time, Apple should get cranking on those issues!