If the speakers are connected with terminal connectors, sure you can. As long as you match the polarity. None of the OEM speakers are powered speakers. Unless, the speakers are components, where the tweeter is somewhere else, and they are not coaxial speakers. If you have a picture showing an OEM connector and that this is not possible, please show it. It has been a few years since, 1997 when I ordered and purchased my TJ. My current car stereo system cost me over $2700.00 dollars. I really don't bother with it anymore. I let professional installers handle it now. When I got my Alpine PDX-V9 and had it moved under my dash, and I didn't want to mess with that. When I had my dual 10" subwoofer box, wired and installed to the Alpine, I didn't mess with that. But, I did check and correct the polarity on my speakers. I also made gain and frequency cutoff changes on my Alpine. I recently installed a new special integrated headunit that the manufacturer recommended a professional installer to handle. So, I didn't mess with that. But, my initial upgraded stereo and all the speaker work, I did myself. I still have my initial clarion EQ, that works perfectly with the Alpine and subwoofer. I installed the Clarion myself too. But, this was before I got the Alpine and the subwoofer box. I did recently change all my speakers again myself. I upgraded them to 150 watt RMS speakers to better handle my Alpines power output. I also did all the radio and speakers in my GTA convertible Mustang that I sold when I got my Wrangler. I also installed Triaxial speakers, amp, and a radio in my first car, a 1968 Fairlane 500. Those were the days. So, I know a little bit about it.