Step 5: Cut the polyethylene noise damping foam (2 sheets included) to tting pieces
Step 6: Loosen the carrier layer and stick the tting pieces to the black aluminum surface
of GZDM 3750AB-SILVER as topping layer to reduce standing waves inside the door
Step 7: Clean the surface of the back side of the door trim from grease and grime
Step 8: Cut the GZDF 1500SA sound absorbing formed foam (4 sheets included) to tting pieces
Step 9: Loosen the carrier layer and stick the tting pieces to the back side of the door trim
Step 10: Re-assemble the door trim and check the functions of the power window and switches
*If you have no experience in car parts disassembling,
please contact your car audio dealer
