Sorry pizza guy i've gotta one-up you here

Click here to see the awesomeness that brianbrave posted

I'm glad he actually took it out and looked at it, I can see mine but haven't cared to replace them. They're a 6.5" sub normally. The question would be if the base models still have the housing in there, just no subs....which I'm guessing to be the case. In order to get to the subs "cleanly" it's fairly simple. Remove your interior trim in the rear (it takes quite a bit of tugging, but be careful....i'd also get some interior push clips from napa/autozone before you start, as you'll break at least one) and at this point you'll see a large magnesium plate covering your fuel tank. remove the plate, and move the sound deadening that's around your fuel tank... The housing/subs should be right there in plain sight. If you can't see them then you'd be better off putting a sub in the trunk the ol' fashioned way in my opinion. As stated in the thread linked above, the bazooka subs are a direct bolt-in, so assuming that the limited and base use the same amp (stands to reason), the wiring might already be there anyways. Just take a peek and see if you have it set up, but just need subs, car companies won't want to pay for too many variations. If they can (and yes they surely can) have base and limited models made the exact same, but simply forget a $100 pair of subs, and charge an extra grand for it, they will.

In summary, remove your trim, and see if you have the:

Housing
Wiring
Same amp as a limited/srt

if you have all of those, buy the bazookas, plug in (spade connectors are already there) and enjoy. If you don't have all three, then just go the old fashioned route. If you have any questions or need to make sure that you have the same amp, either do a search for pics of it, or drop me a pm, i'll give you my number and you can give me a call.