Poor after-sale service

I traded my vehicle in a month ago - the dealership offered me their tracking device which is already installed but I declined because I am binded into a contract with car track. I have on numerous occasions requested a re-installation date for car track to install their device into my new vehicle to no success. I am now paying for no service from cartrack and my car is at risk as it is not covered by insurance for theft or hijacking. I doubt I can hold cartrack liable should theft take place - I want to cancel my contract immediately and have the dealership activate their tracking device.