At some point, you're going to have to replace the dome light bulbs in your Fiesta ST. In my case, I didn't like the warm color temperature of the OEM bulbs. This particular article will cover replacing the OEM bulbs with LED equivalents, but the procedure is the same regardless of what kind of bulb you choose.

This process took me about an hour because I had to figure out most of it myself. As with any project like this, make sure you keep track of the different types of screws and where they go.

Please Note: Fiesta STs with a sun roof will have a different dome light for the front of the car. These instructions will work for the rear dome light regardless.