My Toyota's head unit bulldozes to reverse mode and if I was in reverse for 10 seconds, the song resumes 10 seconds as if its been playing in the background.
My Toyotas head unit has similar behavior issues. It will connect to bluetooth and start playing the song as soon as you turn on the car, only no music will come out of the speakers until you pause the song, then press play. Why do I have to manually "wake up" the speakers instead of the head unit? Probably because this software took one engineer no more than a week to write before it was shipped out full of these annoyances that would have been avoided had you, you know, tested out connecting a blutooth device to the head unit before production even just once.