Hi All. I have a Corba 2000 that I bought off Ebay. This is the something like I have never seen befor and I will do my best to tell you what it is doing. The first thing the Raido was to be stock no mods "wrong" it has extra channel's on it with a switch on the back which i will never use. That is the first thing the 2nd thing the meter lights do not work thast can be fixed. Now for the big one "wait for it here it comes" This thing dose TR RX BUT in order to do this you must plug the speker in the PA Speker hole flip the switch to PA and then you receve a real good RX. Now then in order to talk you must flip the switch back to CB. one more thing the volume nob will sometimes kill the sound and if you move it back or foeward the sound will come back on. NOW this is the 2nd one I have bought on Ebay and not that my wife cares but i am not about to tell here i am going to buy a 3rd LOL. So i need some help. If you can help on this I WOULD BE THANKFULL. God Bless.