I didn't know Shelby had his own auto security company, but there is a few shots of vintage shelbies and wiring diagrams to boot:

Shelby Auto Security Vintage Gallery

 

christ, he'll put his name on anything!

 

What's interesting is that his systems can form part of a cell phone remote start and security system (links in upper right corner). I've never seen this part of his business mentioned before. Caught me by surprise when I was hunting for the cell phone controlled security systems.