I dont have a solid answer on this. Technically its a bad idea to play osid roulette blind against a pcm, so I would proceed with caution as there is no unbrick if you put a bad file on it. It seems like I have had a hard time ID'ing a few pcms before and I just went with the delco/delphi on the front, and made sure to flash the delphi ones with the x624 operating system.