I looked at the other boards in the receiver, and it looks like the other components marked BD are inductors. I'm thinking about scavenging the identical part from the ground of the XM radio circuit also on this board because I'll never use it.
It originally blew while I was connecting a sub amp to the receiver, and I dropped the cable, and the shield which was connected to the receiver (and seems to be a floating ground upon looking at the board) touched the earth grounded case of the amp. I still get a signal from the receiver, but there's a very noticeable line hum now.