**Need help finding the right installation kit for your vehicle? Click Here The Schosche SAGTE6 - 2002 Trailblazer/Envoy/Bravada 5-1/4 to 6-1/2 speaker adapter lets you customize your car stereo to suit your personal preferences. It allows a smaller unit to fit in the housing for a larger one for added versatility. This Scosch speaker adapter is compatible with specific vehicles. It\ s durable enough to last you for a long time.