TM 10-3930-669-20 b. Installation. (1) Install relay panel (2) and six wires (5) on  engine  compartment  (6)  with  four screws (4). (2) Install 28 wires (3) on relay panel (2). (3) Install seven relays (1) on relay panel (2). NOTE Follow-on Maintenance: • Install engine ventilation pane l (Para 6-2). • Connect batteries (Para 7-48). • Remove wheel chocks (TM 10-3930-669-10). END OF TASK 7-121