Outdrive Exchange in Peoria
Ask for Paul, tell him you were referred by Zack with Boat Bling. They mainly do audio installs and service on custom sportboats such as DCB's, Eliminators, etc.but have a number of loyal wakeboat customers as well.
Total Auto Pros in Phoenix
No firsthand experience with their marine installs but they have done a number of my friend's vehicles and the owners know boats. Great quality and stand behind their work. Worth a call.