Wow- that Navtool is pricey! There really isn't any other way to do this? I was figuring that with the Nav system and backup camera, there would be some sort of input already built in for the Clarion cable. The iPod system is a necessity, but I'm thinking it wouldn't be wise to spend nearly 300 more on a 6 year old vehicle that I will probably keep two years tops- Off I go to get the front kit! Thank you!