[PGSigns]

Here is one thing to think about. I redo a lot of these clusters and the amp gauges in more than half of them are over heated or melted. If you have added high amp draw accessories to the truck to go along with the higher capacity charging system the factory gauge will go up in smoke under that much load. This is the reason the companies like American Auto wire that make harnesses for these trucks drop it from the harness. For safety and reliability I would not wire it in the system.
Jimmy