Part numbers for the light group (if your Ram didn't come with it factory installed)

Lighted visors:
driver side yy77tl2aa $75.28
passenger side yy76tl2aa $75.28

Under hood light 56021441 $14.00

Wiring for under hood light 5013995aa $15.36

Cup holder and ash tray light 55361226aa $13.68