iPhone Autoplays Music over Bluetooth in Car

Hello all - Every time I start my car, my iPhone connects to the car via Bluetooth (as it should) and the Music app starts to play the last track played (which it should not). I can view and stop the track playing on the car's Bluetooth app, but on the iPhone the Music app does not appear open so I cannot stop it from playing (I seldom use it except for this issue). How can I stop to this from happening, and why would it happen as described?

Note 1: Car is a 2019 Honda Odyssey with updated software.

Note 2: When I connect the phone to the car via USB to initiate CarPlay this issue does not occur.