Check the listing for details. CA5T-18B849-BB Lincoln Navigator MKS THX amplifier *Remanufactured* CORE REFUND. Color: Silver, Condition: Seller refurbished. Listed at 339.99 USD. CA5T-18B849-BB Lincoln Navigator THX amplifier *Remanufactured* amp core refund. Condition is Seller refurbished. This unit has been fully refurbished to resolve known manufacturing defects and is guaranteed to work. There are two model #s in the Navigator vehicles. Be sure to purchase the correct model #. This unit fits the 2012-2014 Navigator and can also be found in the MKS. No dealer programming is required. This unit will be plug and play for your vehicle. Normal 0 false false false EN-US X-NONE X-NONE The listing comes with the opportunity of returning your defective core amplifier for a $75 refund. Core refund process: We provide a return shipping label in the box with the unit that you have purchased.You return your old/defective core in the same packaging using the enclosed return shipping label.We process a refund to your transaction method within 3 business days of receipt and you'll be notified via eBay that a refund has been processed.Most units qualify for the full refund amount, though major liquid and physical can lower the refund amount. Please reach out with any questions. We’re more than happy to assist with questions related to the issues that you are experiencing with your audio system.