This is the diagram I got from the kit I'm gonna buy

and this is the kit itself

On the diagram it shows the red wire going to a fuse and then the battery. Is that fuse supposed to be an inline fuse that I'll have to buy and put on myself or is that the fuse box? If its the fuse box then how do I hook it up to it?

you need to get an inline fuse.

bout what size you think?

just a small 2.5-5 amp fuse should be fine for that setup....

Thanx. Thats all I needed to know, unless someone has some info I should be aware of.