Went to restart work on Celestine . Thought must have a detail catch up of were I am on the electrics and were i want to be . looked at the PDF of the switching unit . common + switched neg , oh dear . Spent 4 hours tracing and checking the all ready fitted wires . knocked a few bit off ,more to fix later . After 4 hours found out a few things . One it wired switched positive neg common . This can be fixed by using relays . Second do a detailed wiring diagram and fill in the colours of the cables as you fit them . Dont chop and change colours ) .
so some relays have been ordered . will check these when I come back from work next week . Then do a detail wiring plan . Then start wiring up that bridge . need to find a connector to for the bridge wiring harness , needs to be about 20 way . might look at old computer cables etc .