External temperature gauge broken. How do I repair a broken cable?

After a small crash, my temperature gauge readout is “————“

I suspect I sheared the cable to the gauge rather than smashed the gauge itself.

How can I repair this cable effectively?

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0

crwdns2894050:0crwdne2894050:0

crwdns2889612:0crwdne2889612:0 0
crwdns2892346:0crwdne2892346:0