This is doing my head in. It’s no doubt simple, but my brain is just not working.

I have a 12v dash camera permanently installed in a car. The camera normally continues in a standby/parking mode while the ignition is off, activating itself by motion.

I’m seeking to have the ability to switch off the camera manually when the car is off (by a momentary push switch) then have the camera automatically turn back on when when the the car is ignition is activated.

Essentially:
- car on, camera on.
- car off, camera on. UNLESS,
- car off, momentarily button pushed, camera off.

Somebody please put my simple mind to rest with an answer on how to get this sorted.