Jason you're not going to get much bass from any speaker you put in the rear. Cars that have "bass" from rear speakers get it because the speaker resonates in the trunk. Since we have no trunk there is no seperated air space to give it that resonance. Aside from that unless you sealed the pod off (which I doubt you did) then you just have air slipping around the pod and providing no suspension to that speaker.

Which is fine, because if you want "bass" you need a sub and a small amp.

Also I hope you have those tweets capped off in the dash because if you don't they're gonna blow faster than you can say "What's a cap dude?"

If you were to come by my place I could check your shit out and help you since I was an installer for years. And I live one town over LOL