karlp606 said:

2. Interior light also is intermittent again could this be a loose connection on the doors somewhere?

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that is most likly to be the door switch. The interior light is on a switched earth and the door switch earths through the screw holding it to the bulkhead which rusts (as does the bulkhead) and leads to an intermittent fault. I would unscrew them give them a good wire brush and reassemble. That may solve you problem. If not the replacement switches are very cheap abs some stainless screws will do Wonders.