Where is this connector

Just bought my 68 New Yorker a couple of months ago and im just going Thure everything so that the car will be good to go for next summer.
Found this connector taped up next to the alternator.
The wires are violet and gray with a black stripe.
I am guessing its for the engine temperature sensor but would like to confirm.
The car has an aftermarket temp gauge installed.

View attachment 333703

View attachment 333704
Author: Kiku