I have a Bailey Ranger 470/4 rear stop/tail bulb stopped working. On replacing this the wiring clips at at the back of the bulb holder came adrift, so not sure which goes to which. I then cheched nearstide connections to check connection and found different colours.??? The nearside viewing from back of van from left to right are black/white/red the offside I have 3 wires /brown/white/red does this mean I should wire from left to right red/white/brown