Just wondering if anyone has one of these on their car, or if they know much about them, I have met two people ever to have this, but it seemed like a useful tool. Has anyone heard of any problems with these, also what are some good brands that I could look into. I checked up on ebay and the highest price is $170 for a package with all sorts of wierd crap and it's an alarm too, and there is one for $15 that just starts the car. is this how cheap they should be? or is that crap quality?