I started organizing the cabling in the avionics bay. The Approach Stack system looks like it will fit better on the lower level of the panel - there is just too much cabling to get by the AHRS and the pitot-static plumbing. So... Back to the drawing board.
I roughed out the routing for the off-panel interconnects. I decided that I will make the AMP connectors panel mounted. These are simple CAD cuts that will improve the appearance and functionality. I will wait until I get the final radios to make the final decision.