There are two groups of red wires that rot and come apart, Vauxhall had them separate so I fixed them the same way but perhaps could have joined them like Murph said. I didnt bother to check, if they are fed from different fuses then joining the two groups would have everything working but not properly protected by the fuses.
Heres a couple of pics that may be a small help, before and after. Its not clear to see which wires were from which group though.

