#1 is my work lights to see in the dark, #2 ismy 12 volt gas pump, used to fill up the welding machine or myself if needed #3 is for a valve that allows for me to gas up my own tank while driving, i should be able to get 12 hours of driving between gas stops, and #4 is for the interior lights inside all my cabinets, to see my tools. A sound clip is beyond my skillson the computer. I cant even get any better pictures of the truck on here!

 

Very nice setup. best of luck.