I just finished the big part of upgrading my 98 TJ sound system. I went with Polk db521s front and db651s in the soundbar. Used baffles in the front and polyfill in the soundbar. Went with a Sony XM-4S 4ch amp under the driver seat. It sounds pretty damn good with the settings all dialed in. And it's stealth.
Next project, a stealth subwoofer.