Quick turn off of Bluetooth / android question.

This is only a minor problem but it is annoying.
When I have my Bluetooth headphones on and I'm listening to music out of the house or listening to a streaming game on my phone.
Whenever I get into the truck to move it out of the garage or to run down to the store the truck BT cuts off my headphones BT and takes over whatever I am listening to. I have tried to catch the start screen on the truck and if I'm quick I can push the phone icon and disable the phone but if not the truck takes over the BT. If I'm simply moving the truck to the drive or out to the street its annoying because I have to re connect the headphones when I get out of the truck.
If I'm listening to the game and going for a quick run to the store I still want to listen to the game while I'm in the grocery store but the same thing applies. I know I should have head phones on while driving but it's a short trip to the store.
I have a Galaxy Note 8 with the latest Android version and want to know:
Is there a quicker way to shut off the truck BT?
Is there a way to make one BT device the default in android on the phone?
Or do I just quit whining and realize that everything isnt perfect and yes I will have to deal with minor inconveniences? LOL

Any idea's