Correct me if I’m wrong, but only the oem Bose system comes with the subwoofer?
I tend to trust your kid and believe something is wrong. When we were young, we tend to know our sound systems.
Personally, now that I’m a dinosaur, I can live without it.
With that said, not only should you hear it, but you should FEEL it!
Like when somebody with a upgraded sound system is BEHIND you blaring out some music, you can FEEL your chest pounding even though you’re in another car.
When you said you put your ear to it and said some bass is coming out like it is trickling a bit; I found that odd and laughable at best.
Personally, I think the kid is right and maybe blew the speaker cuz they like it loud.
Rock & roll might not be the right music to test if the bass guitar is not that loud, you should try some old rap songs with the deep 808 kick drum to really test it. Try YouTube to find them.
And definitely feel some vibrations on your floorboards at least!