There is an ad in classified showing what i can provide. It may not be kosher for me to fully answer your question here. Cost is $35.
Following is a link to the ad.
http://www.huntingnet.com/forum/muzz...eech-plug.html
Following is a link to a thread showing how you could do the work yourself.
http://www.huntingnet.com/forum/blac...ification.html