Give me a spanner and I'm more than happy to crack on, but when it comes to electrics, i'm pretty useless. I have tried to learn auto electrics from a book years ago but nothing made sense to me

I've been reading old posts and articles on google, but not much of the info seems to be getting into my thick noggin!
I like the look of the Eastern beaver fuse box thing, looks nice and neat! But I'm not sure what type I need, there's a selection of amps.
Also do I need individual relays for all the leccy gizmos? Or is the Eastern beaver 8 way box a massive relay for multiple accessories?
I'd like to have:
Symtec heated grip elements (like AMCQ46)
A cigarette lighter socket (for my phone and headset to charge up off)
That's about it really, but the option to add stuff would be nice.
Could really do with some advice on what Eastern beaver box to go for and what size cable etc! Im lost
