Hey Guys, I purchased one of the group buy plug and play harnesses to add the accessory meter display on my 2019 TRD Pro. I never got around to installing it and don't for see it happening anytime soon.
The group buy is closed and the OP isn't making these anymore from what I can tell. You will need this harness and the toyota accessory display p/n 83290-35090 (blue font) to install into your 2014+ 4Runner Trail/Trd Offroad or TRD Pro.
This is a really nice harness, OEM connectors and well made.
$75 shipped w/ paypal, PM me with any questions and to purchase.