Review on Metra Electronics 70-5520 Wiring Harness: Ideal fit for 2003-Up Ford Vehicles by Mark Adlesh

As for the connectors, the factory wiring harness fits. When it comes to presentation, the devil is always in the details. Bought for an 11 F250 which they checked before ordering it was the right adapter. NOT RIGHT. The only thing that was right was that it actually matched the wire harness, put the coil here. A few pins were misplaced and also the fact that it was only 1 of the 2 plugs that my pickup needed. Which isn't necessarily their fault, but still a little annoying. In the end everything worked out. However, try to make sure you know what you are buying. Don't rely on wire colors or missing instructions. All said and done, that's it. This is an aftermarket adapter for aftermarket radio. I have no doubts the job would have been completed quicker if I hadn't bought this. But at least I didn't have to cut off the factory harness connector. Or I? Much luck