So, there was an option back in the day for NO A/C? Okay, so it seems. The link below is what I have found so far... this is as far as I can confidently get. Can I get someone to verify which part# to purchase. GDII did a good job of getting me here. But the whole "your will be mirrored" has be confused. link to place to buy:
Don't get confused between AC and a blower /heater function. AC is for cooling where all MR2 will still have a fan and heater function. Your pipe has been removed by a previous owner, it will have been there from the factory.