What I would have done different ?? Perhaps never started the project lol. I am not a spring chicken any more. I think GMC is a brand that should separate itself from Suburbans. Nothing against either one, I am a bit biased to yhe Yukons. 1. I would have also installed a Glove Compartment Light. (This is on the agenda) 2. Fold the mirrors in when truck off and mirror out when truck on. (That is also on the agenda) I just have to think this one thru really carefully and minimize the relays. 3. I might have connected the wires a bit differently. I can sort of see them under the running boards when I am walking towards it. If you ever do something like this where the wire is running from inside to the door, let me know and I will tell you how. My first was a pain but by the time I got to the fourth one it was a snap. All four doors have courtesy lights and accent lights. I will try to post more pictures and perhaps a silent video.