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Guys...wonder if anyone can help me out on an Alkysystems Meth install on my 2007 C6Z06. The kit comes with a relay that is used to supply power to the PAC(controller). The directions say to find the fuel pump drive circuit gray wire in the fuse box and tap into it. This will in effect only supply power when the fuel pump is powered. I looked at the fuse box fuse diagram and found the 20A fuse that drives the pump(#20) but it is not a gray wire. The only gray wire is in the center pod of the fuse box but it is not "hot" when I turn on the ignition. Callaway actually advocates tapping into this gray wire also to for a relay they use as part of their supercharger installation.(see attached link pp 64-67)
Does someone have access to a C6Z06 tech wiring diagram and can tell me what the gray wire in the center pod of the fuse box is for (location A7) as well as what color wire the actual fuel pump driver is behind the 20A fuse?