I installed my X910 about 3 weeks ago and all went well. I also upgraded the factory speakers at the same time. Yesterday morning on the drive to work I was listening to the radio but when I turned the car on to leave at the end of the day, no sound. No nav prompts, FM, AM, iPod, Sirius or phone. I pulled the HU last night and everything was connected and the grounds were still attached. I do have both grounds from the wiring harness and the HU attached to a single screw. The other thing I've discovered since poking around the internet is that it may be a short in one of the speakers that shut
