So we own a 2011 Volt and I had a couple questions. How do you access the 30GB Hard Drive (if it is even on this model)? I want to put my music in the car. Seems a lot better than plugging in the AUX cord every time I want to listen to something. Next, are there any programmable features you guys have used? I recently reprogrammed the doors to all unlock after pressing the driver side button so you don't have to press it twice. Any suggestions?