escalade remote power window

does anyone have any idea on how to wire auto window roll ups for a 2002 escalade. the drivers window rest at +12 volts and all the other windows rest at ground. I am adding a remote start and the unit only has 1 aux output. I was going to use the negative output of the lock on the remote start to roll up and the aux 1 to roll down. I was thinking of using relays and a timer to activate the roll up but am affraid the motor might burn out, due to the roll up activating everytime the doors are locked. any devices on the market for this application. I know the window science tw-1a will not work for neg trigger. any help please.

Here are the wire colors and use a power window control module to do this:

|  LF WINDOW UP/DN|blue   -   brown    |A  |drivers door switch         |
|  RF WINDOW UP/DN|blue   -   brown    |A  |passenger door switch       |
|  LR WINDOW UP/DN|blue   -   brown    |A  |LR door switch              |
|  RR WINDOW UP/DN|blue   -   brown    |A  |RR door switch              |

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA