I have a 2007 four winds hurricane, it has a go power panel and controller installed, I gave the parts guy at camping world the model number and all info off of it, he recommended an expansion kit. So I bought it, but I don’t have the Mc connectors on the roof, they are just basic rubber coated plugs. So the expansion kit isn’t plug and plug. My question is, can I just buy mc connectors and put them on my original panel wires? I don’t see any reason why I couldn’t. But, if I do, is there different sizes connectors or are they universal? I see the connectors for sale on homedepot.com and Amazon but i right see a size.