Trailer Socket Wiring

[Guest jaycee]

Hi

Trying to instal 12S socket(for caravan battery & frig supply) to new Focus Diesel Estate.

Two questions;

1) Route through bulkhead from present position of new wires adjacent to main fuse box at rear of glove box.(No problem then as straight to car battery via fuse)

2) Suitable place to pick up feed to caravan frig( Must be live only when ignition ON)

Thanks

Jaycee