I think the relays for the door looks are in the drivers footwell. Behined the speaker. When mine got wet the door locks went mental.

With the lights. Mine are doing the same. Wiggle the 2 relays and they work for a while. I have to keep pulling them out and bending the connectors in the fuse box.

From what I have been told, to replace the fuse box is a right mare. You need to change half the wireing loom unless you fancy cutting the wires and soldering the box and wire to it.

HTH

Max