disclaimer: I am not an electrician, follow any of this at your own risk! I recently bought a dashcam to fit into Dexter. Priorities were: Some sort of recording when parked Reversing camera I know the main purpose of a dashcam is to record driving activity, but that was actually not important. As they all come with that feature we’ve got it though, bonus! We bought a Wolfbox G840H on a black friday deal for the princely sum of £135.