How to start your car from a cell phone via GSM relay!

Step 1: What do you need?

Parts:

-GSM activated relay.  This device will contain a SIM chip that can connect to the GSM cell phone network.  It's relays must be able to be activated by phone call or text message.  In my first build I used a GSM-AUTO, but found a cheaper alternative on eBay HERE for the Quad Band version (North America) or HERE for the Dual Band (Europe, Asia, etc.). it costs around $150 which has 7 relays.  Another alternative is Relay Supply or you can go directly to the 7 switch device HERE.  One relay is controlled by phone call and the rest are activated by text message.  The relays can be set as either momentary or latched.
-Car Starter Key Fob (the remote control thing on your keychain).
-12V DC cigarette power cord
-Small plastic bag or ESD bag.
-A few wires.

Tools:

-A few screw drivers
-Soldering Iron