Can anyone explain to me how the plunger piece works. I bought a used kit and I’m going crazy. In all the installation videos and pictures the plunger is black. In the used kit the plunger I got was gold. I emailed the owner of the company that sold the kit when it was new and he said the plunger is supposed to be gold. But when I watch the installation videos the black plunger snaps into the gfb dv+ unit itself allowing it to connect to the stock electronic valve operator. Then the combined pieces are installed onto the car. The gold piece does not fit into the gfb unit and doesn’t snap. I’ve been told the piece is supposed to be gold and should work but it doesn’t and I feel stupid.