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No problem, I disconnected the connector and applied 12 volts to the pin on the firewall side that coincides with the larger grey wire and the fuel pump fired right up. So I went ahead and cut the wire and spliced the KB boost a pump in and every works as wanted. That connector shown in the picture is the correct one, it is a white connector that is mounted on the passenger side fender next to the battery. Can't really access it unless you pull the battery.
For my 2000, at the same time I installed the Racetronix fuel pump wiring harness. The KB BAP is plug and play to it. Sounds like you got it working though.