I also have had the noise problem when I transmit on my RV-12. After working through the grounds on the headphone jacks and even replacing them in frustration I opened the avionics bay and reset every pin on the harnesses involved with the radio. I also jiggled and tightened the connection to the radio itself. That seemed to have done the trick.

great video by the way. appreciated the discussion on your maintenance and upgrades. i am based at same airport as gwen and hoping she will allow me to help her do hers first then I can do mine! haha. my gear has been sitting in hangar for quite some time now. procrastinating the install.

Headset wiring should use shielded wire and the shield grounded at *one* end only; either ground the shield at the radio or the headset jack, but not both; may help.

At my last annual, I had exact same issue with the brake fluid leak at that junction. I also swear I got what seemed like 1/64 of a turn but after couple weeks of flying, I re-inspected and the 1/64 of a turn must have been the trick.

Classic alternator noise. Ground your engine to the frame may help... Heavy gage, like 6 or so, preferably less.

The similarities between watching you and flying the new MSFS is uncanny. I like to take off from KOSU, then T&G at KTZR, KLCK, and KCMH before returning to KOSU. I doubt I'd be able to do that in real life.

What were/are the differences between the old strut and the new one?