I spent much of the day researching some critical, final questions that could affect the design and/or installation of my electrical system and avionics. Questions such as:

1. Can I mount the GRT Manifold Pressure sender on the front side of the firewall? (No, it's designed to be in the cooler environment aft of the firewall.)

2. Would a plastic Bussman fuseblock be OK forward of the firewall? (Yes, it should be OK, but using inline fuses for the "always hot" electrical items might be a better way to go.)

3. Does the GRT AHRS require a separate circuit breaker, or is it powered in series with the display units? (It needs its own C/B.)

4. How critical is the 6" requirement for the lead between my battery solenoid and the battery bus? (It's critical if you want to call it a true "bus." Otherwise it's a "distribution point" or something else.)

5. Does the Dynon D-10A require an external USB port?

6. Does the audio panel default to Com 1 if it loses power? If so, having Com 2 on the Battery bus so I can use it as a pre-start "Clearance Delivery radio" no longer makes sense.