14 Now all that is left to do is plug in the prewired connection into the control module, tuck it up under the dash, and secure it with a few zip ties. There is a small black wire coming off the module. That is the antenna for the system, so make sure it’s stretched out as straight as possible under the dash for best performance. With that done, you can test the system. If everything checks out, reassemble the interior and enjoy your new keyless entry system.