Need 12v on Port side in the galley

[Robbabob]

We just installed an HD tv antenna and need 12v for the booster. I found a lot of audio equipment under/behind the passenger seat, along with a route for the cable tv and nav light wiring. The problem is: I can only remove a cover that is already inside a stowage compartment to see in to the audio equipment location. No way to work around in there, though.

Can I remove the side seat to gain access? I only see two bolts in the stowage location that the seat would mount, both toward the bow.

Not sure how else I will get 12v to the booster location. Alternate location for the booster plate will be considered, too.

Any help will be appreciated!