I might have suggested rat-shack years ago. Their selection is small to non-existant these days, as they try to establish themselves as a cell phone and satelite TV outlet store. Lotsa-luck to them (they'll need it)!
All of the Radio Shack stores in Jacksonville have sent all of their CB, ham, OTA TV, electronic repair parts, tools, etc. and other "excess" to a single store in the area that will specialize in what Radio Shack used to be famous for... only not so much of a selection any more! I'd have to drive to Gainesville for any real selection of CB or ham gear!
BTW, a 4-ohm speaker works well on a 3.2 ohm system. Sometimes requires a slightly higher volume setting, is all. Even a 8 or 16 ohm speaker won't hurt the system, but the volume might not be adequate. Don't waste money on big magnets or high wattage speakers, as they don't help aircraft radios that lack the audio power to drive them properly.
