EFI help needed, Wiring questions.

I bought two wire hubs, one red one black. Mounted the red one under the dash, and the black one next to the battery.

They were essential in making clean connections for multiple wires.

For example, I ran the ignition run and start to the positive hub, and hooked the voltmeter there as well.

Before efi, when I installed my msd, I made a jumper wire and hollowed out the back of the ballast resistor. It looked stock and I didn't have to splice wires.

When I converted to efi, I bought a 4Runner alternator, eliminating the external vr, and thought, I don't even need all these wires going out into the engine bay, splicing, dicing, etc.

I bought the hubs, and integrated a Painless 7 fuse box into the existing harnesses. Mounted in the factory location, using new factory terminals, slid into the existing factory plastic connectors.

The factory 'splice' in the dash harness was completely bypassed, not needed, not a single wire connected to the splice was used.
I also have fused items that were not from the factory, iirc heater, headlight switch, etc.