Help with power antenna wiring

[ragtop1968rs]

I have a 65 corvette restomod that i have a power antenna(new aftermarket). On these cars the stereo sits sideways which I never liked so I decided to use a marine radio. The problem is marine radios don't have a wire for a power antenna. What I'd like to do is mount an on/off rocker switch so I can just manually raise and lower it. I'm not sure how to wire this up correctly. One side has to be ground. The other side I ran the power wire from the antenna but of course that did nothing because there's no power going to it. So then I tried tying a 12v wire from the battery to the rocker switch with the antenna wire but that just blew the fuse. Any ideas how I can make this work or any other solutions? Thanks