I am also interested in this thread. My Edge is a 2011 Sport (w/ Nav) and the 5 year extended warranty on the APIM is expired. I have the Black Screen of Death and I believe the APIM has died. I have tried pulling fuse 29 and removing the negative terminal of the battery. I tried both overnight, but the screen is still black. When I pulled the negative terminal and put it back the next morning, the radio stayed on for approximately 50 seconds and then turned off.
My DIY question is: Is it possible to buy the APIM (w/ Nav), remove the dead APIM and replace/reprogram the new APIM?