The gauge pods all have printed circuit boards and pin connectors on the back. Connector plugs are attached to the pins. Each circuit is individually labeled and the runs for every one of them are specified in the fsm wiring diagrams along with wire size, ie 10-12-14-16 etc. While somewhat challenging to read due to size, I've looked at them many times to isolate various circuits and wiring issues in y own diagnostic efforts. Not sure what else you're looking for.