http://www.chiefaircraft.com/airsec/Aircraft/InstallationSupply/Speakers.html

Quam speaker, p/n QM 4C3Z8FR $18.95

Buy one that works, do not get a "Radio Shack" speaker. It's not worth tearing the ceiling apart and putting in a cheaper speaker when an aircraft one is under $20 bucks. Also,the impedance may not be correct for aircraft use.
-Brian

Last edited by Brian_Anderson; 11/10/08 03:31 AM.