You can't see, but I'm pressing the PTT with my left hand while taking the pic with the right. The meter is making noise and indicating continuity. Which is what it should be. Very good. The PTT circuit on the pilot side works properly. The same test was done on the co-pilot side with the same, proper, result. Excellent. Now, if I can only get the bits I need to complete the installation of the trim switches and get it tested...