dashcam

Hi! 2014 Outback here. I want to hardwire a dashcam in at the driver's side fuse box, but I need a ground. Where the easiest location near the fuse box to do this? Also, if the ground is behind the panel in the picture below, how the heck do you get that side panel off??? Thank you!

I have a year old Blackview DR900s - 1CH dashcam that I took out of my trade while getting the OB Onyx XT. I will be going a different route with the Subie but thought someone on here may want this dashcam. I have the box, dashcam, mount (needs new stickie stuff) all wires, manuals. I purchase...