I too am having this problem with Poweramp and my 2011 Mazda 3. I bought the car last week. The first day or two I did not have this problem, but since then, anytime I skip to the next song, Poweramp pauses at the start of the next song and I have to press Play on my stereo. This does not happen if I am playing music through the Galaxy S3 stock music player or through Slacker Radio. I have tried changing various settings in Poweramp to fix this but cannot figure out how to do so.