Aircraft avionics radio wiring electrical and installation manual including Mitchel Century Edo Aire S-Tec auto-pilot. GPS NavCom, Transponder, Glideslope Rnav and more all on CDs. Garmin Cessna Narco ARC Bendix King Collins and most other brands.
Wiring practices, test procedures installation wiring and connections to other equipment.
These are factory manuals most are searchable all are indexed.