Just installed 175 in my 180. Already had VOR/ILS capabilities...Several of the airports close to my family are RNAV only approaches, so this new capability is a game changer for me.
Had approx 8K in equipment and install. Had to move transponder to old ADF slot, added Garmin 106B CDI for GPS...
Removed old switch, required pliers and 1/4 in drill bit. Installed new switch on base of yoke, little bit of solder and some heat shrink tubing and done.
thanks all. Hoping to find someone close that can supervise me doing the maintenance and sign off. I think I have a cylinder that may need replaced (getting some blowby) and want to be part of the labor in swapping it out.