As others said...batlabs...
http://www.batlabs.com/rick.html
The RICK is very basic. Make sure your M1225 is set for Pin 8 COR (PL/CSQ Detect). Set dip switch in RICK. It a pretty simple devise. Used hundreds over the years with x-band repeaters, in band and everything in between. First came out for the Maxtrax but can be used on everything including current radios with proper cables.