This is an interesting thread. I dealt with them about 10 years ago, first with an internet connection for an unwired headset/mic. I indicated the radio that I was connecting it to and received a schematic to wire it. About a year down the road, I wanted to set it up to work with a different radio. I sent an email and promptly received a schematic to wire that radio. I love the product. I guess that doing business over the internet/email, I didn't get the rude and obnoxious person. I will continue to tell people to buy and try the product, but don't call them!