there is probably an option for either A/c or non A/c. regardless if you have the A/c hooked up or not, you need to get the A/c if that heater box and A/c box is in the car for it to fit right is what i have learned from everyone on here. thats what i did with my duster that originally came with A/c and has the A/c components within the interior. hope that was clear enough.