I'd like to look at adding an airbag switch to my 99 RCSB truck so I can put my daughter's car seat in the front. It's a regular cab, but has the interior and wiring from a 2005 crew cab truck, so it does not currently have an airbag switch. Does anyone know what it takes to add one of these, or have diagrams for the switch wiring on a 03-07? I'm hoping that I can go to a scrap yard and grab a switch with the connectors/pigtails and splice them in.