I just recently redid my RV-4 panel after flying it for 8 years.
Very simple panel - VFR only.
Took out the old Garmin GPS Pilot III and moved to the back seat to give the passenger something to look at.
Put in AV80R ACE - great bang for the buck and I am very pleased with the capability.
Kept the RMI uMonitor, still working great
Kept Dynon D10, left space to upgrade to their D100 or other later.
Kept RMI uencoder - duplicates the information from the D10, but I like some of the functionality better than the Dynon.
Kept an old school ASI - I just haven't completely retrained myself to go all digital yet!
Put a mount for Iphone - I find Skycharts a superb application for sectional
charts and it keeps getting better with each release.
Here is the before layout:
Here is the during:
And here is the final product:
N144SH