Hey guys, I just got a 2002 f150 fx4! Today I got a new headunit, dash kit, and wiring harness adapter. On the wiring harness adapter it said it worked for 1999-2003 f-series pickups. So once i got my stock radio out and looked at the factory wires I realized it doesnt fit the wiring harness adapter. The adapter has 4 clips/connectors and the stock wiring only has 2 clips and the antenna connection, can someone help me? What do I need?

Also, on the wiring harness that came with the new headunit it has a ground wire with the connection that goes under the ground bolt (cant remember the proper name) where should i ground it? I thought the ground was part of the factory wires.

Any help is greatly appreciated

 

you only hook up the one that connects and you will be fine.