I did exactly that with my HL Walker Bulldog got this from Welsh dragon models:
http://www.welshdragonmodels.co.uk/t...les-1865-p.asp
Bound to my existing Taigen controller, fairly simple process, but you get no instructions, I found details here 16th post on page:
http://www.rcuniverse.com/forum/rc-t...-2-4ghz-2.html
For the binding process:
http://scaledtanksworld.com/stw/index.php?topic=1641.0
Tony