Here 3+ wire damaged at the can connector. Can I replace it?

Hi Everyone,
I crashed my drone but everything is working fine except the GPS. When I checked it, the wire near CAN connector is damaged. Can I replace this wire or do I have to change the entire GPS unit for this? Also Here3+ comes with 2 CAN connectors where 2nd wire is for future use as dual CAN connection. Is there any option by which I can use this 2nd connector as main wire?