All DOA (Dead on Arrival)/ Defective items must be reported within 48 hours after receiving the item. When ordering for a Car Alarm Replacement remote make sure you are ordering the correct one or give us a call to check if it is compatible with your Car/ Car alarm. Physical damage: Item is scratched, torn, wet, burned, blown, signs of misuse, and faulty installation DEFECTIVE or non DEFECTIVE. Factory sealed items: If its opened and tampered except for certain items. The item "POLK AUDIO MM1 SERIES 8 DUAL 4-OHM CAR AUDIO SUBWOOFER DVC 300W RMS" is in sale since Thursday, August 30, 2018.This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "discountcentralonline" and is located in Los Angeles, California. This item can be shipped to United States.