We plug our Nextbase front and rear dashcam into the 12v socket, you can always purchase a 2 socket adaptor from Halford if that helps.
It cam in very useful in June when a woman bumped into the rear of our vehicle when we were stationary at red traffic light, simply sent dashcam video recording to Motability insurance company.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.