First off, if you want to see corrosion of automotive/RV/boat/motorcycle/ATV components, come to PA. You can't even imagine what the road salt and brine mixtures they're using on the highways do to all exposed metal, painted or not. You guys in the South have it good on that front...
That being off my chest...as for removing the green corrosion, you might do well to soak it in vinegar overnight. This will loosen the corrosion, and you might be able to remove it by squirting more vinegar in there. Anything acidic works, I'd start with vinegar (Apple cider) because it's probably the mildest one you can use. Phosphoric acid, hydrochloric acid, muriatic acid, lemon/lime juice--all will dissolve corrosion but some may be too strong for your particular application. Once you get it off, coat it with contact grease. I'm not a big fan of dielectric grease. Then cut a hole in a tennis ball and use that as a cover. Good luck!
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)25
2014 Harley Davidson FLHX (XLR cargo)
2014 VW Jetta TDI (diesel sipper, camping support vehicle)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)