Need help finding new temperature gauge

I tried one gauge at a time since I was limited on my selection of wires/connectors. The 25 ohm resistor didn't budge the temperature gauge, but separately the fuel gauge went to full. I'll give it another try and use the multimeter to confirm the connections, but having tried twice already, I doubt it will change.

I'm using a portable battery pack jumper from Costco, not a charger. It pushes 12V (which I confirmed with the multimeter). I have an old battery that I tried at first, but it had under 11V and wasn't enough.