I tell ya... I thought I would have to swap out the stereo, speakers, etc... but I love the stock system. I picked up a 32GB usb flash drive on woot.com for $40, it holds all my MP3s and I simply don't carry any CDs in the car anymore. LOVE IT! Sure it's no tech-guy thumper... but it's enough for me. Plus I still need to conserve space back there for the pooch. 150# mastiff!!
He's about 130# here and out with me wrenchin on a bike (whats new)