Not there on a 2004 Z06. Where do you get Acc Power?
How do I get the acc power for my h/u?
if you look in the passenger footwell, pull out the cover and look in the top left corner. There will be a small plug with three wires (orange, yellow, & black) that are just taped up. Check out this schematic to see which fuses they use, but the yellow wire is the +12V switched, and that I am sure of.