its a cool device called Dei 2102t from ebay. It sends a ground pulse when you approach the module while holding a special FOB, and a different ground pulse for walking away from it. i used 6 relays 4 diodes, a timer relay(dei 611t), an on/off switch (for when you want it to stay put) and a couple headaches....

ill make a write up for this as well. the spoiler syster was designed as a simple motor with 2 limit switches. the BCM moves the motor up and down and knows where it is via the limits. the limit switches send a ground to the bcm. so my set up is 2 relays that act as up and down controllers and 2 more relays to stop the motor when it reaches its limits and the last 2 relays convert the ground outpus of the dei2102t to positive. the timer relay dei611t controls power to the down circuit and was added late in the project because i noticed my battery dying :S. anyway.. heres the video.

Dei 2102t on crossfire. wired to spoiler too. - YouTube