I have a 1997 k1500 z71. I recently bought a 1991 k 1500 parts truck. My question is since the 91 has the older style switches and wiring harness. Can I find anything in the aftermarket to plug straight in to my existing truck harness to convert it to the older door harness. My problem is that I changed doors and the metal panel that was in my original door is different then the door off the 91. Any help would be much appreciated.