Ok, I have an 89 Sunbird, I am in the middle of taking the A/C out, today I pulled the heated core, and noticed lines coming into a heater core looking thing for the A/C, i pulled it out, and it led to a vent behind it, going out to a box mounted to the firewall... Would I be able to take out the box bolted to the firewall?I have pics below. I still want heat, but A/C is gone. All help is appriciated, thanks in advance!!!
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