Metra 70-5522 Sub-Plug for Select 2003-2005 Ford Vehicles with Premier Radio Amplifier integration harness Includes rcas This product is manufactured in china Sub-plug for amplified sound systems in select 2003-2005 Ford, Lincoln, Mercury vehicles Includes an 8-Pin harness with 2 Pairs of RCAs 1.5K Ohm resistor can be used on the amp-remote wire to eliminate turn-on pop 1-year Manufacturer's warranty