Anyone who has been stuck with a Ford Sync (sadly I am in that group) or MyFord Touch radio running the crap software MS built knows how bad of an idea this is.
This. Exactly this.
I've posted my frustrations with Sync before. In fact, the very first words out of my mouth when we got into that F150 for our first test drive was "Oh, wait, why does that say Microsoft next to my radio? That's going to be nothing but trouble." And guess what? I have to routinely stop the engine, remove the key and open the door to give that lovely Microsoft Sync product a second chance at connecting to my phone that it was just happily connected only a few minutes prior. It's probably not even a 50/50 chance that it'll work! The $15 bluetooth-to-FM transmitter I bought off Amazon, however, works like a freaking charm. I NEVER have failed connections with that thing. Ever.
If I get into another car for a test drive and I see a Microsoft logo anywhere on it, I will exit said vehicle immediately and demand a credit for the 5 minutes of my time they just wasted.