Here is a pic with the DIN pocket door open. I ordered the pocket from subaruparts.com. FYI, the part number is 66128SA040. It was $18.68 + shipping. You will have to drill the metal ISO brackets in order to get it to fit perfect with a DIN deck. I am not sure if it will hold an entire CD case, i'm sure it will. I installed the deck myself. The deck will bolt directly to the ISO mounts and the holes even line up perfect, no need to drill anything except if you go with the same DIN pocket I went with. The factory open pocket will work perfect since its already installed. The connection to the battery is fairly simple. There is a separate fused power wire connected to the deck. I soldered that to 8 gauge wire and ran it through the passenger side of the firewall. There is a ventilation hose(not sure what its for) that runs through the firewall. I just squeezed the power wire beside the hose and made sure the rubber grommet installed back into place. Once you look underneath the glove box, you will see what I'm talking about.