When using my iPhone 5 with bluetooth in my vehicle, the other end of the phone states I keep cutting in and out and sound crackly.
My bluetooth connection seems fine from my phone to my car except when making phone calls. I think the phone call is ok, but the other end of the line states I sounds crackly and keep cutting in and out. If I just opt to use my phone to my ear instead, they state it's much better.
iPhone 5, iOS 8.4.1