Hi

I want to get some 30 mm2 from battery to boot for an amplifier

I have this pic:

I've been looking for a hole to use but cant figure out where?

Any suggestions? Drill new hole, but where?
Just need the cable to get in then I'll run it under the carpet in left side and signal cords in right side.

If you could circle the picture to point out where it should be

Thanks!
Best regards
Martin
Denmark