When you move the fuel pump to the front and splice into the existing harness do you run both wires all the way to the front to the new location of fuel pump plug...or do you terminate the ground at the engine compartment and ground to metal in the front trunk close to the plug?

Thanks, Dave

Either way will work. FWIW, I extended both, but the localized ground will likely offer a lower resistance current return path. Not that it really matters -- with properly-sized wire (18awg min), you're only talking about a few fractions of an ohm.

the ground on the original fuel pump simply goes to the big ground terminal next to the relay board.

save yourself one wire and just run the black/red wire to the front and make a local ground connection there.

btw. there's absolutely NO reason to hack into your old harness (splice). simply put a male spade on the end of your new wire and plug it into the stock fuelpump connector.
Andy