Agree with Gerry. If you find you need to re-wire, use the basic Scamp
wiring diagram as a basis. It follows the Bargman wire color scheme (as does Boler
and Trillium). The Scamp wiring diagram can be found by doing a search on this website or a general web search.
I had use this approach with my Boler 13. The interior wiring had been completely removed by PO, so I re-did it and added a converter and distribution panel. The towing light
wiring was there but had been hacked up. I didn't totally re-do the towing light wiring, but re-worked it quite a bit and replace Scotch Loks and electrician's tape with crimp splices.