just like they said theres a few options, but what ever you do DO NOT run the wire thru your fender to the door, you ever pinch the wires you can cause some serious damage. Buddy worked in a few Shops, seen it so many times....guys complaing blowing fuses like crazy, even seen guys who didnt fuse the line. Best thing go thru the firewall. Its thin guage so drilling wont be hard. and use the grommet, vibration and what not can cause that metal to cut thru the plastic coating of the wire after a while. and I always fuse both sides of the wires, Some only do one side....for a few bucks more...id rather be safe then sorry.... just my .o2