the leds are mounted 0n a alum plate with a fuse holder below them. I use a 6 cond cable solder to the leds hot guled in place. the cable is run thru the fire wall 1/4 grommet. included will be a female and male ,radio shack 6 pin sockets you will have to solder the pins . then match the wire color for color very easy to do . the indicators are neg ground so you just have to connect the red pos wire from the fuse holder to the pos block or the switch side of the ing switch. Thanks ,you can make these youself email me I will give you my phone number and tell you how .