GRT Avionics

Help, please. Am about to uninstall a Blue Mtn A/P and install a GRT A/P in my Zodiac CH 640. Have the wiring diagram but GRT could not furnish an Installation guide. If you can provide or furnish directions, I'd be most appreciative. Please send to : hoodbeck@aol.com

Thanks. Bob Beck

Have a 4000 and HXr which are both working well, but one of my fuel quantity numbers on my 4000 (AUX 2), my left quantity , blinks? I don't know why. Help, please.Cheers. Bob