91 CRX HF Speedometer

I recently bought a 91 CRX HF, great little car, but the speedometer
doesn't work. I had a local mechanic look at it and he said something
about the contection at the tranny appeared fine, but the connector at
the instrument cluster was messed up. He said he had no idea why it
would have broke there? No biggie, right? It should be as simple as
replacing the cable? Any insight would be much appreciated, Thank you
in advance!!