Permanent +ve supply for parking mode dashcam in BMW i3?

[Losangeles]

Hi - does anyone know which fuses offer permanent 12V supply ? I am fitting a Blackvue dashcam with Parking Pro unit which will allow the camera to continue recording in 'parking mode' when the car is parked until such time as the 'domestic' battery dips below 12.5V.

With the help of a multi meter I have located a supply that is 'switched' which is needed for the dashcam driving mode but I need to find a fused circuit which has a permanent +ve supply even when the car is locked and the electrics have shut down, to power the camera in 'parking' mode.

The problem is that apparently a lot of the electrics remain 'hot' for a period after the car has been locked - I have heard up to 20 or 30 minutes so short of locking myself in for 40 minutes and then trying to get into the footwell with the doors closed, I thought there might be an easier way.....ask the experts on here !

So...does anyone know what fuse position I can tap into with a (separately fused) wire to pick up the supply needed ?

Many thanks

[Losangeles]

Many thanks for your reply – I have consulted the Fuse schematic and the OBD port seems to be served by four fuses! I am wary about trying to go to the back of the OBD itself as I think I may then be getting into the territory of invalidating the warranty on a nearly new car. Frustrating thing is the fuse I need must be right in front of me. Someone mentioned that there is a permanently ‘hot’ fuse which is used if fitting a tracker. I guess I’m rather hoping that somebody has already come across this problem and knows the fuse number I need to hone in on?

[Losangeles]

Many thanks Dash Cam Man... Doh...now you have pointed out about the tracker that makes perfect sense! Will leaving the doors open ( hence the interior lights on ) stop the car going to sleep? Many thanks again