City lights are small light bulbs inside of your headlights that light up your headlight assembly somewhat. Below is a photo of what my city lights used to look like when I had them in my car.

Below is what you'll need in order to make city lights that look like mine.
Type 194 light bulbs (2)
Sockets with wires for 194 light bulbs (2)
Wire (At least 16 gauge)
Inline Fuse
Switch (Optional)
First, you need to drill a hole in the top of each of your high beam headlight assemblies, which is big enough for the end of the sockets to slide into. Now you can put the bulbs in the sockets and secure the sockets to the high beam assembly somehow. I used duct tape, but it was pretty ugly. >

> Once the sockets are in, you just need to connect the ground wires of the sockets to a good chassis ground. Then, with the +12 volts power wire coming from the sockets, you have a few options. You can splice these wires into the parking light power near your turn signals, splice the wires into the blinker wire near your turn signals, hook the wires up to a switch, etc. Whatever you do though, be sure to use an inline fuse in the circuit, to be sure that you don't start an electrical fire in your car.
I hope this helps. If you need more info, just let me know. >

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