The only problem I could see is if you have a dual stage shock sensor and you WANT that functionality. Other than that, they are pretty universal as long as you wire them up correctly. Basically the connections are power, ground, trigger, warning for the dual stage or power, ground, trigger for the single stage.
ETA: I did have issues with an add on sensor where the alarm did not provide enough juice to power it up, so I had to run a dedicated 12v wire to it!