The beeping flickering occurred when the suspect hd was connected to the BCM 200. When it was on the 400 there was no such activity. Hence my comment on thinking it will be the tray. I'm not sure that the phone side needs the hd on boot up at all since the hd never boots up and the phones work. If I had all those pieces yes I would bring them for sure but since this is the only BCM we ever touched we are purchasing the required pieces on the fly so to speak. I'm headed back there this week armed with components and I will post what goes down..or comes up.