Is this really necessary and if so where can I get it????
I see you already have your info on where to get them, but for the proof part talk to a guy on here that goes by <eanin Post. He bought one, hooked it up with no fuse, first day got a spike and blew the unit. luckily it wasnt a high dollar one like yours, but he has always stressed the importance of an in-line fuse since then.