Acura Wiring Diagram - Volkswagen Passat B5 FL (2000 – 2005) – fuse box diagram. Year of productions: 2000, 2001, 2002, 2003, 2004, 2005 . Relay arrangement on thirteenfold auxiliary. How to re-wire a fuel pump off a relay. Installing a dedicated voltage supply line for your fuel pump . Contributed By: Enginebasics.com . When putting in an aftermarket fuel pump or looking to get more fuel out of your factory pump, one mod worth doing is re-wiring that fuel pump.The purpose of this is to make sure that the fuel pump is getting a good, clean voltage that won’t fluctuate or.