There are lots of little details not covered by the instructions. There are three installation manuals: Crutchfield's, the Maestro one, and the Kenwood one. You need to read all of them. The Maestro's harness mostly sits in between the Kenwood harness and the Ford harness. The diagram tells you which wires to connect with which, but what they don't tell you is that some Kenwood wires go directly to the Ford, and bypass the Maestro. There are some RCA plugs that deceive you into thinking they should be plugged into the back of the receiver. Don't plug them in, instead cut them off and connect them to the correct wires in the Kenwood harness.
I wish I had taken notes for you, but I didn't. Other installation pointers are: I installed the GPS antenna on the top middle of the dash on the stick-on ground plane plate supplied. I worried that it might not have worked too well, as the heated windshield's wires might have blocked the satellites, but no problem as it turned out.
On the other hand, I successfully installed the SiriusXM antenna on the back of the cab roof just in front of the third reverse light lens, running the cable under the lens and into the cab. I put a dab of caulk around the cable where it ran past the lens to keep water out. To avoid running a long video wire for the backup camera all the way from the rear license plate forward to the receiver, we cheated and got a little wireless transmitter/receiver. It works most of the time, with very good resolution, but it can be a bit intermittent, and I would've run the wire if I had to do over.
I also replaced the AUX jack on the center console with a remote USB/HDMI jack; this is incredibly handy for plugging in my iPhone for charging and navigation using Apple CarPlay, which works fantastically well. There is no nav built into the receiver itself.
