| Many aftermarket alarm systems are available out there that works like the Mini factory fit alarm. Here are some of the sites you can check out, purchase online, and fit into your Mini:
Costs may vary from one brand to another. I would suggest you check out Viper first as this is a very reputable alarm company. I had trouble posting URLs here. Try searching it up on Google instead. Fitting can be done outside the factory. Most car repair shops can do it. | 
