aftermarket power windows ign source?

I have recently installed aftermarket(SPAL) power windows on my 2003 silverado. The installation went smoothly but the instructions did not identify where to get Ignition on power to connect to for power to the units. Can anybody help direct me where to get this power from? I currenly have it attached in the fuse panel on the drivers side of the dashboard on a pin where it appears that a connector or relay would be installed. I blew a 10 amp ignition fuse while testing this. I am not that familiar with the layout of the electrical system in this truck. If anybody has a wiring diagram or a schematic that would be helpful. Thanks in advance

I am an idiot is so correct that in their original instructions spal stated word for word what he said!

Tho you could use a relay and go to the battery in this truck like Spal wants, i have done hundreds of them and have always used power from the ignition switch. It is at least 30 amps which is plenty. I use an accessory wire, brown or orange.....Mike M2

Tech Manager

CS Dealer Services

Same as Mike M2 here. In front of the driver's knees, remove the two 7mm bolts and pop off the plastic panel. Usually the metal clip on the left side stays on the car.....you'll easily see what I mean....just pry the clip out and reattach it to the dash panel that you've removed. Behind that, four 10mm nuts for the metal knee bolster; remove that. Right there, coming down the column, you'll see all the heavy-gauge ignition wires together....the wires you'd use to put in a remote starter or alarm. The brown wire has power in Accessory and Run, while the orange wire has power in Run only. The orange wire would duplicate factory operation, but you could use hte brown wire if you want to be able to operate the windows while you're parked, with the key in the Accessory position.