2000 Bauer Expedition. 133K miles. Dome/map light bulbs burned out. Replaced with proper spec bulbs. Still not working. Checked the fuses and none have failed. Then I discovered the metal bands that the bulbs go through on the outside of the socket are broken. See photo. I can manipulate the bulb for it to make contact with the band and turn on, but when I set the bulb in the socket it won't connect to the band to turn on. What are these bands called and how are they replaced? Something a novice could do? Thx for any insight.