Manuals for Garmin Autopilot System Model Document GFC 500 Manual , Maintenance Manual GHP 12 Autopilot System Installation Instructions Manual GHP 20 Installation Instructions Manual GHP 20 SmartPump Installation Instructions Manual GHP Compact Reactor Hydraulic Installaiton Instructions GHP Reactor Mechanical Installation Instructions Manual REACTOR 40 COMPACT HYDRAULIC Installation Instructions Manual TR-1 GOLD 906-2000-00 Owner's Manual