Why not just send the transmitter back to Airtronics for wire replacement. They may not even charge you since it was a known problem. I have one of the early RDS8000 and never had a problem except for the flimsy antenna that most 2.4 radios have. I have also been using been using Spektrum for years without a problem. But being tired of babying the antennas, I got a new DX7 with the solid antenna. To the dismay of the Spektrum haters, no problem with it all last season after a few hundred flights. The Lipo battery is great too.
bob