2003 Redfire V6,
Show: Smoked everything, cobra front bumper, gt rear bumper, rear decklid and lower valence blackout with black mustang letters, 5% rear front 15%, black 98 Cobra rims front, 95 Cobra R rear black with chrome lip, black scoops and spoiler and exhaust tips
Go: CAI, True Duals with flowmaster super 44's, Bama Tune, full suspension (lowered, 8.8, 4.10s, UCA, LCA, springs, CC plates)
And no it does not come on anytime you;re using the air. It does not come on at all on vent.
The compressor will cycle in the defrost mode. I believe it is primarily so the compressor clutch will not freeze up during the lack of use in the Wintertime. Anytime it is on AC, defrost, or heater/defrost setting, it will cycle.