Okay, thanks guys, starting to get a clear picture. I assumed that routing below the subpanel to the avionics in the front bay wasn't going to be an option. I put my co-builder in the airplane and her knees don't come anywhere near where the wires would wrap under the subpanel, which I thought would be an issue.
#140376 RV-14A QB IO-390 Thunderbolt
Progress: Away for PAINT