He knew what he was doing, but YOU had no clue what he was doing. Low frequency audio is close to non-directional, you install subwoofers where it is convenient to fit them, not to "aim" the sound in any particular direction.

Mine is firing directly upwards. I'm not trying to knock birds out of the sky.

I know it's a typo, and I make typos all the time, but this one should be elevated to the "new word" status

A collogue:

Someone who sees their role on the team as to annoys others.

That’s just how you install a subwoofer though?

Subs are non-directional, as someone else pointed out, and bass sound waves need room to propagate. The actual direction they get "aimed" can also depend on the trunk area and shape.

My subs, while currently pointing backwards, would have been better firing upwards for no other reason than the manufacturer (Audiofrog) doesn't recommend grills. As it is, I have to be careful what I place in my trunk to avoid punching a hole in the cone.

They were probably subwoofers. The direction doesn’t make a difference for those.