I was looking around the kenwood site today, when I came across this little gadget, http://www.kenwoodusa.com/product/pr...?productId=669
it's basically like a little HUD, where u can add an adaptor for a digital compass/weather. It also reads the track number and such from your deck. I dunno I thought it was really cool, just never seen it before, what I was wondering, are there anyother types of devices? That I can use without having to go with a full line of Kenwood stuff?