Due to trouble with the Speedo & Tach performing properly on my 1997 Jetta I changed the instrument cluster with a used one. After installation the Air bag warning light stays on. If I put the old unit back the light will go off in the old unit. My thoughts are the system is working properly, but the new cluster is not synchronized with the system or the system needs to be reset because of the different cluster. Any help or experience regarding this issue would be greatly appreciated.