the tow hook location definitely gives off that feel for sure. I added links above to some clips of each camera location.
on my ST I used the ADF Customs tow hook kit with a Raceseng tow loop + gopro mount any solid mount on the crash bar should work fine though to keep the camera from shaking too much.
I also swapped to an external mic on the rear bumper with one of these mounts tapped into the lower valance using a power/audio splitter cable and modified battery side door
Not a dumb question at all! I'm using this audio splitter (plug the male end into the plane's radio and my headset's respective plug into the female end. The USB-C plug goes directly into the GoPro and it records all audio that you hear in your headset (ATC, others people in your plane, and yourself).
That splitter is actually just a combination of these two items:
So you could potentially purchase them separately for cheaper. Though the Nflightcam bundled cable does come with a little rubber thing that helps keep the two attached, though I can't say how helpful that really is, heh). Probably not worth the extra money that it costs.
I personally bought a this whole video kit that includes Nflightcam's GoPro splitter cable bundle, ND Filters, suction cup mount, battery door cover, and case.