2016 Regular Cab Wiring Diagram.

I have a 2016 SR Regular Cab with the basic Radio with 4 speakers. Two 6x9 in the doors. And two tweeters in the dash.

I've only taken the right door apart. And it has a light green and blue wire. The right tweeter has 4 wires. Red and Green as well as light green and blue like the door.

Was hoping to find some more information about how the speakers are connected.

 

Here is a Picture of the Regular Cab door.

 

Had a chance to take the radio out today. Anyone know what the small black connector is? Its not used on the back on my radio.

 

Satellite radio antenna connection?

 

I was thinking GPS antenna.

 

There's no XM in the stereo. And the only antenna on the truck is the whip antenna on the right front fender.

 

OEM GPS antennas are mounted in the dash. Maybe you have the antenna installed but yoir head unit doesn't have a place for it because it is an SR.

 

The only things on the dash are the 2 tweeters and the temperature sensor. There's no center speaker.

 

That's why it's not used, maybe. Is there a black square bump on the passenger side roof of the cab near the windscreen? Where does the other end lead to?

 

There's no bump on my SR.

 

I'm out of ideas.

 

That's the satellite connector/cable for sirius xm antenna. I have the same connector in my SR. It comes from factory with the harness (taped on the side to the harness I believe). The only issue is the SR does not have the satellite antenna installed on the roof. But you have the wiring (from factory, believe it runs through the passenger side pillar and connects to the antenna there) in case you decide to upgrade your HU and install the oem satellite antenna.

Hope that helps. If you found any more info on it, please let me know. I would like to know where the wire leads to.. I'm in the process of my own upgrade.