I have an iPhone 4 and a 2011 Mustang with SYNC. The system works fairly well (outside Of the connection issues many others have experienced) but I have an annoying problem whenever I start my vehicle (maybe 95% of the time).
Upon starting the vehicle, Bluetooth Audio comes on and begins playing my music from my phone. However, for the first ten seconds or so, the sound is jumbled/garbled in a peculiar way: it's really sped up for a second or so, and then silent for a second or so, then sped up etc. It does this cycle about 3-5 times before it finally starts playing normally. If I'm listening to a Car Talk podcast, it might sound something like this:
"Yourelisteningtoc............artalkonnation............alpublicradiowithcl.............ickandclackthetap............pet brothers, and on today's show..."
It's like pinching a hose for a second, and then letting go and having a bunch of words come out at once, then pinching it again.