A combination key lock and latch assembly for a vehicle trunk lid having the key lock located separately and closely adjacent the latch assembly without requiring modification of an existing latch assembly. A sliding actuator is attached to an existing latch assembly without requiring modification. The key lock includes a projecting arm for rotation upon user rotation of the key lock; and, the arm contacts a projection on the sliding actuator for affecting movement and release of the latch. The latch assembly may be manually released from inside the trunk by moving the projection on the sliding actuator.