Hello everyone, I recently bought a Kenwood KDC-X591 HU and installed it in my Jeep Wrangler yesterday. Install went very smoothly (it was my first ever car audio install) and everything seems to work perfectly. Here's what I have to help you guys help me better (because I have no clue). 1) Stock system in a 2005 Jeep Wrangler, two speakers upfront and two in the sound bar along with a built in sub in the center console. Only the HU is aftermarket. 2) Kenwood Excelon KDC-X591 HU with a USB jack in the rear. 3) Creative Labs Zen Vision W 60GB media player connected via USB in the glovebox. I did a search but it didn't turn up anything. Two issues I am having that's really bugging me are: 1) Load times: It seems to take too much time to load a CD. My MP3 player takes about the same amount of time to be recognized by the kenwood. the display on the kenwood will flash "reading" for a good minute or two. 2) (this is the most frustrating one). Whenever the MP3 player is recognized, browsing is a real chore. Instead of being able to see what the name of the folders are, they are displayed in a numerical sequence (folder 20, folder 21, etc., etc). So pretty much, I have to let the file start playing to know what the folder is. I don't have any sub folders on my player, each album is it's own folder. In other words, I don't have all my Allman Brothers albums under one "Allman Brothers" folder. I did notice the HU included a CD-ROM containing their Music Editor software. I have not used it as I figure it's just their version of syncing the HU with the MP3 player. I never used the software with my Zen player either as Windows Media, Media Monkey, and other software did as good a job. One other thing. When I do change the display (I leave it on the clock setting) It doesn't change from the clock display whenever I perform a function, like browsing through my MP3 files/folders. I'm more or less browsing blind. It is a great unit and sounds much better than the factory HU. If this is a common thing with Kenwood, I might send it back. Is this common on all USB equipped headunits or just with Kenwood's? I bought the Kenwood mainly because of the rear mounted USB jack. I like being able to leave my player in my glovebox connected and locked. I was deciding between a Sony CDX-GT410U, the CDX-GT610Ui, and a JVC KD-G830 before the Kenwood. The rear mounted USB jack was what won me over. Any info on those units in comparison to what I have is also appreciated. Thank you all for your time and patience. Sorry for the long (and winded) post.