I did the Rosen nav system too, its not too bad, but after using it awhile, there are some things that are kinda bugging. I haven't hooked up the boxes yet, but they are installed. VERY COOL! I hope this helps people who are considering this install. + Install = super easy. The hardest part was pulling panels off. - Navigation hangs up a lot! - Scanning through a CD especially an MP3 CD takes FOREVER! - Lights on the buttons are really dim, so it kinda doesn't match. - FM reception is even worse than the stock stereo! - Not customizable. You can store CDs on the radios HD, but you can't rename the 'button' that says 'Disc 1', 'Disc 2', ect... + The texture finish does a pretty good job of matching the rest of the center console area. + The radio looks like it belongs in the car! Pretty awesome fit! - RDS display is only like 8 or 10 characters long. There's a huge screen but it doesn't use it! Overall I do like the features of the Rosen unit. I like that I can play DVD and it does have more oomph than the stock unit. Even though I listed more negatives than positives, I would recommend this unit, you really can't beat all the features, nav, dvd, mp3, iPod, usb, sd card... I'm sure there are more things I could list, but you get the idea.