just to avoid any confusion:
I switched out the 18 awg wire and put a 10 awg wire in instead because of length reasons. I have also put this inline fuse with a 20A fuse as recommended in another thread. Thanks gameboy for helping clear it up, and that site you sent me helped some more. I should probably switch the fuse to 15A instead or even better switch out the 10 awg and put in 8 awg from what I understand from that site you sent me.