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What i mean by this is, on the driver side window of my 2001 honda civic ex coupe, the window button can be pressed once and the window will go all the way down. Can you do this for the sunroof/ and or passenger side window?

 
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As for your door goes, you would need to install a limit switch, then you would have to add a few wires to complete the process. If you would want to make it easier you could always pick up a limit switch(not sure what type)at an electrical store and install it on that door. Then try to locate the wires that activates the limit switch on the drivers door, splice them to run a set of wires to the passanger door limit switch in paralel. If I was doing that mod I would take the round button on the door(the one that prevents the passanger to open the window) and transfer it to a switch that can activate the automatic open when pressed on by splicing the power wire that goes to the limit switch. Then by pressing the button to the off position would cancel out the automatic signal to then open normally. For the sunroof, I dought that you have enough room to install a limit switch next to it, so I think it would be best to install a timer to the power wire under your dash. A timer would even be a good idea for the passanger door window instead of the limit switch but still using the round button as your automatic activation of your timer. I hope it doesn't sound too complicated.
good luck

Personally, I would rather hold the button.

 
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you can get auto roll down modules thatll do the job. pretty simple to wire up.

comes with instructions and everything.

easy.