Hi i have a mazda 323 base model with a cluster with no rpm gauge, so i recently swapped it with the cluster with rpm but the fuel needle gets stuck at the top i dont know why im thinking because i need to get the right wireing harness for that gauge because my original tank connector has 5 wires and on other models that came with the rpm gauge has 7 wires so i am unsure even reading the wiring diagrams it still leaves me clueless.(mj)