Hawkeye7A
Well Known Member
After about 75 hours of flying in my -7A I installed an auto docking station for my XM receiver for the tunes. It introduces into the audio a faint high-pitched tone that varies in intensity with the engine RPM. If I unplug the power cable from the back of the dock, it quits. If I place a diode in the positive line will/should that eliminate the tone? Another problem with it is that it continually shuts off and turns back on of its own mind. I suspect this may be due to vibration. Any ideas? Thanx.