Answered Weird button on 2019 E350 dash

[Dirtdad]

On my E350 dash, there are 2 power ports/cigarrette lighters. One to the left of the radio, and one to the right. On the one to the right, there is a maybe 3/8" round black "button", just above the port, in the same dash indent. Anyone know what this is? There are 2 wires going to it from the back.
thanks.

 

[mbutts4901]

That's been on my list to figure out, too. Hopefully there's someone else on the forum that knows!

 

[BGMAC]

Pictures would help, but I found this online. Is this the button? If so it is for TCS (Traction Control System).

 

[Dirtdad]

In the pic, Im pointing at it. Its right above a cigarette lighter port, that Im replacing with a USB port. Im beginning to think that its a plug jack with a rubber cover inserted into it, but if it isnt, I will break it trying to pull the cover off, as I cant get it off with finger nails. There are 2 wires going to the back of it.

 

[Alan_Hepburn]

If it is a jack it's probably an AUX input for the radio.

 

[BGMAC]

Take a look at the photo I posted. It shows it far a “Line In”. The plug “should“ come out with your finger nail or small flat tip screw driver.
fingers crossed.

 

[Dirtdad]

Plug came out. Apparently is some sort of jack. What you plug into it?

 

[BGMAC]

Audio in. If you have Bluetooth you probably will never use it

 

[Dirtdad]

Thank you. Mystery solved.