I finally got a troubleshooting guide from medallion and I took a volt meter and started testing wires. It turns out my original MMDC is good. I will be sending the new MMDC back for a refund. I have narrowed down the issue somewhat.
The correct volts are going into the MMDC and out of the MMDC but the 4 wire plugs that go into the back of each gauge is not receiving the correct volts. I think this means that the issue lies in the wire harness between the gauges and MMDC. I have checked the 3 fuzes i could find and they are good, i can't find any broken wires. I am confused on whats going on.
Anyone have any advice for me?