This is the setup I have.

One switch I can flip left and right to pull from the port or starboard tank, AND when I do, the one fuel gauge in the dash, reads the tank selected.

It’s all up and working. Only the back, of the dash is a wiring nightmare. I plan to clean it up by a lot. BUT in case I f-it up… I can no longer find the schematic I used, along with the type of switch I need (it has six lugs on the back), to replicate the work.

Anyone point me to the right schematic/diagram? And the right switch?(DPDT?) Also where do you get quality toggle switches? Amazon has tons but I don’t know a good brand from not.

-Peter