IMO you might as well enable city lights if you're going to get rid of the side markers. A VERY cheap and easy way to do it is just get some extensions to plug into your existing side marker sockets (lots on ebay), splice the extension into the city light socket wires, (already in your headlight doing nothing, it even has a bulb already) and VOILA! You now have city lights, and your car won't give out a bulb error cause you are still using the same circuit. The headlight cap will still fit with the wires coming out of it (I wrapped mine with some electrical tape for extra protection), just a little tight. I also taped up all connecting points very well. If for some reason you ever need to go back to sidemarkers, it only takes a few minutes cause your original sockets are still intact.