69 Cuda Heat / AC fresh air intake alternative?

Many years ago while I was restoring my Cuda, I decided to close over the antenna hole and slotted air intake area just below the windshield wipers to give a more custom and smoother look for the hood. In hindsight, maybe not the smartest thing to do but I really like the look. I am now pondering an alternative way to introduce fresh air into the heat & a/c system. Anybody have any creative solutions?