I have done the doorless mod on my XJ, and wanted speakers for when i had the doors off, I have some speaker boxes that my uncle gave me in the back along with a 1000w sub (1200w amp) and did not like the fact I could not hear the music very well with the doors off. So I took my rear sound bar (already had it out of the jeep just sitting in the garage) and mounted it right behind the 2 front seats, and ran the wires down the pillars and connected them to the head unit... sounds amazing

This part is the portion you want to be looking at:
"CEA2006 Standard Power Output: 17 Watts RMS per channel into 4 Ohms, 4 channels driven from 20 Hz to 20 kHz with less than 1% THD+N."

When I installed mine I ditched the hatch speakers and door speakers and ran new wiring from the headunit to the bars. Just treat the fronts as the door speakers and the rear as the hatch speakers. I ran the wire along the top trim.

Only thing if you use the sound bar in the front you need to use a rear dome light instead of the front with the map lights.

your best bet is running an amp. if you just splice the original speaker wires, no matter were (at speakers or the unit) your gonna get bad sound quality and also lost of power to speakers. just get an amp and power all your speakers through that, its pretty simple, just connect your amp to the unit, then run the wires from your speakers to your amp. you did say you didnt know much about it, i would also draw you a quick sketch of it, but stupid college computes dont have paint lol

Sadly. The whole wiring thing isnt really my expertise. I can do it. But chances are id probably screw it all to hell. Id love a nooby diagram though.

Do you have any pictures of the relocated sound bar?

Here's my 2 cents. Having attended Spring the Break Nationals several times in the hey day of car audio I recommend quality speakers with a matching amp and a simple 10 inch tube in the trunk. Anything else in an XJ is overkill or waste. Save your money. I've seen 6 and a half components in an 8 inch sub sound better then anything I'll ever build so less is more and quality is king.

I'm planning to do the same. Do you have any pointers or photos of the finished product?

in prep for the door-less mod i picked up a second bar with the harness to do just this. all 4 door speakers were fried by the p.o. so i intend to delete them completely and pull all the wires from the doors. but re-wiring the second bar to work is where i'm lost. right now i have my head unit set all the way to the rear because those are the only working speakers, since i'm deleting all 4 door speakers would it still over load if i splice into the corresponding speaker wires from the "new" front bar to the "old" rear.

I.E.
Front Right - Back Right
Front Left - Back Left

it is a boss head unit but i don't know anything about it it was already installed when i bought the jeep

Did mine last summer. Sounds good. Fixing the middle to stop rattling was a bit of a pain

Would have to move it forward it back if you're tall

how did you wire it up

Wired them into the spots for the door speakers. Mine were labeled under the dash for some reason. Made it really easy to find. Didn't need the door speakers so just ran the wire loom past the drivers seat on the floor and up the B pillar and into the speakers

All new though straight to the head unit not into existing right?

New from the speaker to just below the dash. I kept the stock wire loom to make it easy on myself and just spliced the wires together where they would have gone through the door. Wouldn't be that hard to upgrade the speaker wire and run new right to the head unit. Depends on how deep you feel like going