The present invention relates to wire harness and automotive component retention devices, and particularly to a mold-in retention feature in the automotive field for securing a wire harness to a light-signal housing comprising: first and second longitudinal flexible arms with engagement portions protruding from a flexible indentation or membrane on the housing where the first arm is juxtaposed opposite the second arm and where the associated arms are spaced away from each other in an open position and mate together in a closed position. The arms are configured to move from closed to open when a force is applied on the housing's backside so that depression of a flexible indentation or membrane causes associated arms to spread open and receive harness components. Furthermore, arms may move from open to closed position when an applied force is released on a flexible membrane so that a received harness component becomes secured between arms.