I want to build a relay switched headlamp loom for my MK2 Golf, which has famously crap lights. Broadly speaking, I'll be following the guide here:
1) Most headlamp looms for the Golf do away with the dim dip system. This seems to consist of a resistor about the size of a pack of polos on each chassis leg. Is there a way to retain this, other than keeping the factory relays in the fusebox and running new heavy cables throughout?
2) Can I just shove relays where I like in the engine bay on relay sockets, or do I need to use a weatherproof box ? I suppose the fact that weatherproof boxes exist suggests that they're a good idea.