I just replaced my blown subwoofer in my center console with an Infinty speaker. I had to buy a set. So I have one left over if anyone needs one. If someone can prove there speaker is blown I will give it to you for just shipping cost. I can also help you with any questions you have for replacing it.
2003 Sahara, 2.5" OME HD, 3/4" spacers for winch, JKS 1.25" body lift, 1" MML, SYE kit, Coast Drive line, Jks Quicker Disco's, JKS track bars, RE upper rear control arms, Dana 30 Aussie locker, Soft 8 15"x8" with Hankook RT03's. Superwinch EPI9
It's not a hard installation and yes most 6.5" midbass dedicated speakers (such as the infinity) should work. The factory sub is DVC (2 sets of terminals) so you need to have a little bit of wiring intellect.
If Nunnyabinus doesn't want it, I'll take it. My sub has been blown for a couple of months. I've wondered if a 6.5 would work as a replacement, just never bothered to ask. How does it sound? How can I prove mine is blown?