Ok good to know I’ll look at it again.You'll need to get yourself a factory workshop manual and dive into the wiring diagram.
By matching the wire colors, you'll be able to figure out what the different plugs connect to.
Typically there are corresponding places with matching wire color, but not always.
Also not all plugs are powered and meant to be plugged into something, but be sure to properly insulate anything that has (+) current, but does not get plugged into other connectors.
I guess what I can’t figure out is where the gauges get power from. They are all plugged in behind thebinnacle, but where does that go and plug into?