There is a large black heat sink bolted to the structural member that runs from the firewall to the top of the instrument panel of my plane (see photo). It isn't well attached and I'd like to either get it removed or moved to a more secure spot. Any idea what instrument it is part of, or what it is for? The only instruments that predated my ownership are the Century IIB autopilot, the Garmin 530w, the Edo AM-550 audio panel, the Sigtronics SAS-440 intercom, the altimeter, the turn and bank indicator, the vertical speed indicator, and the clock. I have a copy of the intercom install manual and it does not show such a heat sinked device.