Solder Seal Butt Connectors are stronger, waterproof, and easier to use than traditional crimp connectors.

RCA fittings are about $2 each, and do not require soldering. Another option would be to buy a standard coax cable with F-style conectors, and then buy two F-RCA adapters and screw 'em on.

To try our hand at soldering wires to the tiny connector, we made this handy travel charger just before a long, long, long plane ride.