i just won a 1 farad lightning audio capacitor off ebay for $23. now I know they're put in line with the cable from the battery, and it'll stop my headlights from dimming when my small system hits and make it sound a little bit better. but how exactly do i hook it up? what type of connectors are used on the capacitor? how much is an "install kit"? how much is a digital voltage reader and are they recommended? should i notice a big difference in the sound? how do i mount this? this is the pic from the auction.