This is fairly repeatable and completely frustrating.
When it gets cold outside, below 45f or so, the instrument cluster is dead and the battery does not charge.
The gauges and warning lights don't come on at all, except for the overdrive off light is on (even though the overdrive is still on. And when you check the system voltage it's in the low 12v range (not charging).
The turn signal indicators work fine and the cluster lighting is fine.

Now after several minutes (5-20 depending on how cold it is) of "warming up" it will just fix it self and the gauges come to life, and the system starts charging.
Sometimes it seems to be fixed by turning the ignition off and back on, or flipping a switch, or something. But that could just be timing and me beating on everything so I can get to work.

If I rev the engine fairly high 3-4k the alternator warning light comes on and nothing else changes.

The fuses are fine and once it fixes itself, everything's fine till the next morning when it's cold again.

I've tried disconnecting and reconnecting the gauge clusters connections with no luck. (oh and i don't know if it's supposed to be connected or if it's related but I did notice a yellow wire(no stripes) behind the cluster that isn't connected)
Any help would be great.