Dunno if the wiring connection is the same or not - but you can get trailer wire harness replacement plugs for 3.99 at pepboys - get the part that goes to the trailer and the part that comes off the truck - 2 plugs - simple - heck if you go to the junk yard you could probably just snip em at the yard and pocket it = free - well 1 would lol . my idea isn't a bad one only i am not sure of wiring - i didn't wire my switches . But theres an idea that is quick and pretty simple .
Here are some pics of the switch box I am making. It started out life as a black dub city escalade. It took me about 1 1/2 hours to completely disassemble it then I painted it the 3 stage color my mazda is going to be. It flips from blue to gold as you can kinda see in the pics. I am using 10 mini switches and a seperate relay box so all of them would fit. I finished soldering everything up tonight so as soon as I get some wire to run to the relay box I will put the bottom on and have more pics.