TM 9-2320-366-10-2
(14) Position two emergency tow lights (2) on front of M939/M939A1/M809.
(15) Connect tow lights cable (3) to two emergency tow lights (2).
(16) Route tow lights cable (3) along top of M939/M939A1/M809.
(17) Connect tow lights cable (3) to M1089 rear electrical connector (17).