I'm just late to the party! Oh well, I want to make it look as clean and factory as possible, so I'll wait for my switch to come into the local GM dealership.
Just ordered my OEM switch as I couldn't find one avail online - $170CA !!! A far cry from the $25USD listed at the start of this in 2018! Looking fwd to the final product though.
Wow! What a huge and informative post! Very nice! I'm looking to buy a blue switch, preferably the new 84168423 version - I'm in Canada. Is there anyone still looking to sell theirs? PM me if you have something. Thanks again for the great info.