Hi there. I bought a used 1995 Deisel Swinger 180. IT runs good but needs some things. First thing on my list is GLOW PLUGS. For whatever reason the glow plugs wire is cut. The switch is gone. I would like to replace the switch and rewire it. Is there a controller or solonoid that operates the plugs that I have to have? I am sure that I will have more questions too. Thanks.