Except the fuse for the sunroof still works, and so does the fuse that was originally in the radio position. When swapping fuses, no lights came on for the HU or the DIC, the speakers worked for MAYBE 10 seconds before there was a low pop and they stopped. Swapped the fuses back to their original places and everything is as it was, sunroof works, radio works but there's no display and only the front speakers work.

At this point, trying to track down where the problem is is very low on my priority list, especially when I know I'm going to do aftermarket speakers/HU/wiring to avoid the factory stuff. I looked at this like, if it was a simple problem I'd fix it, but everything was getting swapped out with aftermarket parts anyway.