kx-125

I have a king kx-125 with the built in CDI feature, but I would like to ad an external CDI to facilitate my scan - and to add glide slope. Was/is there a CDI that can take a signal and produce deviation and glide slope without the remote -75 box? Thanks!

I need the items to install a KX-125 in my PA-22. Let me know what you have and the price. Please email me at wacreech47@gmail.com. Thanks. Bill