I have a bad feeling that the avionics shop I left my radio at in Novemebr has done something with it, as he will not return call or e-mails. Yes I have a friend going to check on it. So does anyone have a Mark 12D or 12D+ with glide slope? it doen't need to be in full operational condition, I don't want to spend 2-3,000 for another used one, or 2,800 to over 3,000 for a new one.