Duane,
You can take your cables to a local avionics shop and they'll crimp on the right connectors. It doesn't cost much and they can do it in about 15 seconds.
If not, then you should really invest in quality BNC connectors and the proper crimping tool. If you don't get a good crimp on the connector, it increases the impedence and you may suffer from weak/intermittent signal problems.
(Not an electrician, but slept in a Holiday Inn about a week ago!)