I havn't installed it yet, I'm going to on Sunday as along as weather stays good. The D3 is very simple, my mom, who can't even work a dvd player was able to figure it out pretty easily, from videos I've seen the kenwood looks just as simple, I'll let you know on Sunday after I get it installed though To be honest though, if shes a girl like me...and sucks with directions...I'd go with the Kenwood because then later on your can add in GPS if she decides it is something she needs. I don't think I'd be able to live without my D3 in my daily driver car haha