Dan

As mentioned in a recent email. Any of the glider Trig resellers should be able to get you/your A&P the required STC for the TN70+TT22 for install with your or any other glider. Wings and Wheels and I and others worked with Pereguine (the STC holder) and Trig to make sure that STC would be available to glider installers. Go through your favorite Trig glider dealers and if you have problems with the STC let me know. Pereguine are great folks.

Be careful: If you walk into a random GA avionics shop who is not a Trig approved installer that may (correctly) tell you they cannot get that STC.