Ford Lincoln Mercury 2003-Up Radio Installation Harness. This harness will retain and use your OEM amps & has a seperate sub plug as well.

Use with our 95-5812 when installing a double din unit on a newer Ford vehicle.

Use with our FMK-538 when installing a single din unit on a newer Ford vehicle.

If you don't have the OEM amps or sub, no need for this harness save a few bucks and go with out FD23B harness.