Is the connector on your radio like the one in the picture?



If so.... something like this will let you do it without changing the cable....

From Amazon:
https://www.amazon.com/TRUCKSPEC-DAS.../dp/B001JT3J7W

This one here is actually based on an adapter cable...which might be easier to deal with...and it looks to be cheaper at $6.95

https://www.amazon.com/SO239-Female-...DR83JA2CH2WRMQ

See if you think this might help! This way, you leave the antenna "as-is" and just use that adapter.

If that isn't the right connector.... come on back ....

Bob