http://www.airportview.net/ Find the used avionics you need at Av-Shack - here are the most recently added items from the GPS category en-us Fri, 03 Sep 2010 14:51:45 UT GPS Interface and annunciation device Includes 50-pin Positronic connector. Additional 25-pin connector required for installation. 28 VDC http://www.airportview.net/store/item.php?iid=79&ItemCategory=6 Mon, 05 Apr 2010 14:47:10 UT http://www.airportview.net/store/item.php?iid=79&ItemCategory=6 Trimble Navigation GPS receiver with antenna. http://www.airportview.net/store/item.php?iid=51&ItemCategory=6 Tue, 17 Feb 2009 23:33:16 UT http://www.airportview.net/store/item.php?iid=51&ItemCategory=6