On the plus side I must have made the Guiness Book of Records for the longest bulb change in the history of mankind - take front bumper off, remove / clean up / Vaseline earth points, beef up insulation on some suspect looking wires, test voltage at plugs with multimeter, scratch head and wonder why bulbs aren't illuminated by electrickety, realise I'm being an idiot, swear ... lots, belly-laugh ... lots, change correct bulb, replace bumper, crack open a Heiney