hi i just wanted to know if i could mount the alpine type s 10 inch sub without building a custom box for it. i dont know much about car audio so i could really use help. I hear there are free air subs that will work in the sub location without a box but im not sure exactly wut that is , but most likely im guessing my sub is not a free air.

Also, if thats the case, can anyone tell me the dimensions for a box that will fit in there, thanks. any feedback is greatly appreciated.