This is the cable that works with the older radio shack scanners that require the mono plug and the new scanners and the GRE programmable scanners that require stereo plug.
http://www.radioshack.com/product/index.jsp?productId=2177609
You can order/get it at your local RS store or by mail order.
http://www.radioshack.com/product/index.jsp?productId=2177609
You can order/get it at your local RS store or by mail order.