Originally Posted by batman
I would use weather resistant crimp connectors and shrink fit tubing.
The connectors look similar to the regular crimp connectors (different color) but they are filled with water proof goo inside.
Undo your mess, slide on a piece of shrink fit tubing over the wires, make your crimp connections and slide the shrink fit back over your splice and heat to seal. Then a covering with electrical tape to finish...
Secure it all with wire ties.
All good advice.
I would add a couple of points. Make sure the wire ends are clean and show no signs of corrosion before crimping into the connector.
Use a proper crimp tool! Get a ratcheting crimp tool before you begin, there is a thread here somewhere in the forums on this very subject with good recommendations, the tool is imperative.
I like Ancor brand connectors. Expensive but very good quality designed for the marine environment. You do not need hundreds so the cost is easily rationalized.
Finally, I have slowly learned to substitute self vulcanizing tape for electrical tape for connections exposed to the elements, even over heat shrink, as you can not be too careful.