Making a car difficult to steal

rednesss said
I'm getting something like this

http://www.zoombak.com/

[ame="http://www.amazon.com/Zoombak-ZMBK346-Advanced-Universal-Locator/dp/B001EJP3CG/ref=sr_1_2?s=electronics&ie=UTF8&qid=1349237842&sr=1-2&keywords=zoombak"]Amazon.com: Zoombak Zoombak Advanced A-GPS Universal Locator: Electronics[/ame]

Reviews are not good. For the older unit they are worse yet.