I have two CrazedPilot CP-1 stereo headsets that were working normally last May when the plane went in for its annual inspection which is still in progress (waiting for engine overhaul completion and new prop). The headsets had been on the shelf and after cleaning up some avionics wiring I checked the radio (GTR200) and both right speakers are inop. I tested a different stereo headset and both speakers were good. Also, when inserting or removing the headset speaker plug the left speaker will work as it passes through the ring contact on the socket. Also testing the tip with a battery will produce a click on the left speaker, but testing the ring with the battery does nothing. Is there any DIY double shooting and/or repair options available or would it just be best to replace the headsets? Is it coincidence that both failed at the same time while on the shelf? They were purchased at the same time.