I was driving today to get my son the door chime was on constant except when I was at a full stop. I had no lights on the dash( seatbelt, parking brake). I checked that all doors were closed and that there were no low fluids. Not finding an answer for it I pulled the bcm and popped off the chime from the board. However, I stupidly had the key in the ignition and on to accessory when I did this and when I hooked the bcm back up I have no power to anything like my battary is disconected. I don't even have headlights. Any ideas?