ViLLaNLS

so my guage cluster is working but it doesn't light up all the needles move fine but no light i dont understand what the problem is but i also tried to get another 95 ls400 cluster and i see that the orange plugs and blue plugs do not match up on the harness behind the cluster and also on the connecters on the back of the cluster i have pics of my harness and also the back of my guage cluster i have reason to believe that somebody either changed the orange plug on the harness to mayb a older ls400 cluster or a newer ls400 cluster i need help!!!