Two questions: Is your stereo stock? Are you sure you don't have wireless locking. If you have an alarm, you more than likely have wireless locking available. You just need to program a fob. I got one off of craigslist for $35. If your stereo is stock, it should have the gray thing sticking out of the back. It has nothing to do with the operation of the stereo. If it looks like the one on the bottom, then it fell off and you need to find it. The gray thing goes in a slot in the back of your console when you install it. This may be what is giving you alarm fits.