Using Nano in Vehicle

I just recently purchased a 2006 GMC Envoy Denali and want to use my iPod Nano in it. I know that there are FM transmitters but is there any other way to connect it to get a better sound. It doesnt have a tape deck so I cant use that. Any suggestions?

Have a read through the stickies on this forum, has pretty much all the info you need to know!

http://forums.ilounge.com/forumdisplay.php?forumid=44

http://logjamelectronics.com/

You should be able to find an Aux input converter there