hey peeps, anyone with electrical/wiring knowledge please help me...

just got new windows switches for my 89 non-turb vert;

(haven't had switches since acquiring the car, used to use a teeny-tiny flat-head to push the little thingy up or down to operate the window til it sparked and scared the isht outta me then i stopped using the flathead & ordered switches on ebay)

anyways i hooked them up and nothing; so i got a little light tester thing to see where i did have power (on the door) and found power to my doorlocks, door-panel lights, and well thats about it.

if i shorted out the line for the windows or whatever,
how do i get power back in that wire? do i dare run a new line from my battery err... myself?

i put an amp in my trunk aboout 6 months ago
(yes, it works!) for my little system so i'm not totally ignorant re: wiring, but i dont have a clue how to make the windows work.

 

p.s.s. i know the passenger-side window wont work without the driver's side, but started messin' with it anyways, cleaning the connectors etc, and i made the window go down (only) when i improperly reconnected 2 wires...
(i screamed so loud, foxxy freaked out), ... so i know the motors are cool... also cleaned all my plug/connectors on driver's side too so-

thanks you very much in advance.
*sharon*