Something to note is the LX and LC starting in 16 get leather covered panels, so it wouldn't work well to add those kind of switches there. Unfortunately there aren't a ton of good places to add switches in the LX or 16+ LC.
Ya, true. My spot is probably only applicable up through 2012... Mainly mentioning it as a general comment that’s it’s really not all hard to find spots for small switches.
I’ve also considered the up-facing center panel near the shifter... Lots of possibilities for those of us dealing with the lack of the 16’s centralized switch cluster (would love that). I swear Toyota realized after the fact that they needed all these buttons!