Thanks Oregon. I wrote that down in the service manual. Next time I will know.Clarion
Had a quick look and it seems to be for an HD and not an 1800 :leprechaun:Kit, I read somewhere that the 09's may be Panasonic, but I'm not positive about that one. Will be watching for that one Bob Kekeis has a link on his help page about a 1800 CB radio manual, but I have no idea what that thing is, really. See if you can figure it out. About the middle of his page, at the very first of 1800 section. Looks like some add-on like I never saw before.
http://home.comcast.net/~rkekeis/HELP.html