Love the pictures, that’s a neat solution!
I picked up the goggles x last year and have been puzzling out how I wanted to do analog. I recently ordered a kit off banggood that I’m hoping will work well. https://www.banggood.com/URUAV-AV-IN-Modification-Kit-with-5_8G-RX-PORT-V3_0-V3_0-PLUS-Digital-to-Analog-Receiver-Board-Adapter-Metal-Mounting-Case-Combo-for-Walksnail-GOGGLES-X-p-2008320.html
I didn’t like the 2 sided tape solution that comes with the official extension board and velcro seemed similarly untrustworthy. I was hoping for something I could slot on and off securely between storage and use.
What foam cushion is that? That looks comfy.
You mention it not working with the A/V out of any VRX. I’m sorry if you’ve already considered it but I wonder if it has to do with framerates. Madstech videos on the goggles x showed that video in/out only worked when the goggles x display was set to run at the same framerate as the external device. I’ve run into this when trying to output to a tv that only supported 60FPS. I usually fly at 100FPS and had to turn it down for the output to work.
I was also frustrated by the lack of DVR for the goggles. I picked up a runcam dvr and am going to attempt to integrate it into my module setup. I’ll report back with details if I can get it working. https://shop.runcam.com/runcam-mini-fpv-dvr/