no, it was already on it when i bought the car, it worked great up until the batter got sulfated in november, in march i rejuvenated the battery and hooked it up, the alarm was loud and clear, but it just started to quiet down, quieter, quieter and now it just makes a ticking noise from under the dash.motoman399 wrote:touch it to a battery. and see if it even works. make sure everything is grounded. i have had problems where it wasnt grounded properly. did you install it yourself?