cluster connector

IV been fighting this dash and lights prob for a long time..im now really involved because the gas gauge wont work..iv got the diagram but an electrical wizard im not..i put in a great new gauge cluster today...I cleaned it up checked all bulbs cleaned all contact points on the board squeezed the connectors a smidge for good contact..checked light switch .the headlights come on..made sure the wiper switch worked..replaced the speedo with a nice one..the one I took out was jumpy.put a case ground on it and tied it at the steering wheel ground..tryed it and the only diff I got was a nice speedo..a temp gauge that works better than the other..oil and brake light work good...but no dash lights..all connections are good on the pc board..i checked the round pc board conn and I have voltage only on the blu/white striped wire when the key is on...otherwise no voltage at the connector..i look at the schematic and I think it says the orange wire should have 12 on it all the time...I checked all fuses also...what gives????????????HELP PLS..J