Alpine CDA-9855 Car CD / MP3 Player

I have had this unit in my F150 for about a week. At first the menus are a little tricky but it's like that with every new head unit. With a little patience, it's quite easy to navigate. The slide bar takes some getting use to. I could instantly hear a big difference in the sound quality from my stock unit. Over all, I am very happy with my purchase. My only recommendation to someone that is going to be purchasing this unit, read the manual!!! It'll make life easier.