Hardwiring Dashcam

[garfield81]

Hey everyone,
I am trying to hardwire a dash cam by tapping into the "telephone" fuse in the glovebox. I have managed to remove the glovebox but needed some advice about routing the usb cable from the fusebox to the overhead console.

1.) I notice there is a small opening in the top corner of the dash near the A pillar to run the usb through but this opening does not seem to be big enough for the usb connector to pass through. So should I pulling out the A-pillar to get more clearance or instead run the wire under the glovebox and up the side of the side into the A pillar?

2.) Would I need to remove the headliner or can I just tuck the wire in using a plastic pry tool?

3.) Regarding the fuse, I assume the telephone fuse is for the BMW factory phone which is not installed in my car. So I should be able to use that, correct?

Thanks,