Both the stock rear speakers are blown from what I can tell. One the wire harness came off and has been bouncing around slowly cutting the tinned lead going into the speaker and will be too big of a PITA to fix. So I've been looking to replace them... but it appears these things are "subs"? I like very bassy music so I'm looking to replace them with the most bassy thing I can find that will fit easily and not require an amp. Suggestions on something that will just drop in? I THINK it's a 6x9, but it's in this weird plastic cradle thing with non standard holes, and Crutchfield says to replace it with round full range speakers... so now I'm confused... Thoughts or suggestions to help clear it up for me?