There are options. Here is what I did in my K5.
http://67-72chevytrucks.com/vboard/s...d.php?t=515192
You could also do a hidden head unit with bluetooth capabilty in glove box, and mount the tablet to where you can use it to toggle through music or your GPS. I rarely use FM anymore, mostly stream pandora or MLB network if listening to a game etc. SO much is offered via stream now. Good luck!