This is a set of 10 replacement light bulbs for 2003-2009 Trailblazer, Envoy, Blazer, S-10, S-15 And Jimmy radio light bulbs for the radio display. See Pictures above and the video below. This kit includes everything you need to make your radio light up again at night, you get 10 new high quality bulbs and replacement caps as shown in the picture. Watch the video on how to replace the bulbs yourself or of you are not good at soldering, we can do it for you. These will not fit the 2002 model year radio.