more strands means a bit thicker wire ,in turn means it will take the power from the alt and battery for the amp better .the midi fuse is a small anl fuse which is better the the glass fuses .and kit that uses glass agu fuses is very cheap .i only use the thickest wire you can get and the best parts for my amp kits ,the rca alone is $15 if you buy one ,they are twisted and double shielded as well and audiophile recommended .