Just bumping this thread with additional info for others – I wired my dashcam to the fuses for the rear wiper (ACC) and the sunroof (12v constant). If you don't have a sunroof, the fuses for the interior light and auto gear selector also have constant 12v. (As far as I can tell, all the larger fuses in the left column get constant 12v, and the ones in the right column are switched 12v.) They seem to work perfectly. I have a Garmin Dash Cam Mini 2 and used the parking cable from Garmin, which requires separate constant and switched 12v. I grounded the cable to one of the big torx bolts near the fuse box, of which there are a few to choose from.