What does a window module consist of?

So I'd like to add remote power windows to my car. It currently has a Compustar 2WSS-A alarm in it. I was wondering if I could just wire up the windows using the AUX outputs on the alarm. I was thinking I could work it basically like reverse polarity door locks, except time the AUX outputs so they would be active long enough to put the windows up or down. But also wire some breakers into each motor circuit so they wouldn't be held on when fully rolled up or down. Is there really any need to put in a window module instead of doing this?

Buy the window modules & save yourself time, money, safety & Grief....

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Its a bunch of relays that on one channel it will add proper pollartiy to roll the windows down and on another channel roll them up.

So you're saying there's really no difference in just wiring up my own relays or using a separate module? Thanks, that's what I was looking for. I mean, the installation manual specifically says the AUX outputs can be used for power windows, I was just wondering if window modules had any fancy technology in them in addition to just relays. And FWIW I don't see how installing special modules for the windows would save me time, money, or grief. The safety for the motors is what I'm after, which I think I could deal with using breakers, which are probably another part inside window modules.

Typically window modules either monitor current output or the EMF of the motor.  I'm not sure how you would use a breaker to protect the motor.  I am assuming you would use a self resetting breaker, but I doubt they will trip fast enough to prevent wear on your window motor. 

The most important feature a window module provides is obstruction detection, something a breaker wouldn't be quick enough to detect in time.

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Kevin Pierson