Jan,
The gray wire should be on fuse #11. Fuse #10 should have one red/black, and two brown wires. One of those brown wires goes to the AC switch, and the other brown wire goes to the blower switch. This is on original (unmolested) wiring. There are three terminals (male spade) connected to fuse #10. They are all stacked one above the other.
John
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