yea i know i sometimees see cars with them on them going off all the time, but i think i have the sensitivity turned down low enough that it wont set it off, ive tried slaming doors beside it driving my dads hummer by it (with has 4 13w7 JL Subs VERY LOUD) and that wont set it off either only a hard knock to the car so far has set it off which is what im wanting you just have to play with the sensitivity, and my car dont have any tracking system

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