Weird Port

[nkostop]

So i have a 99 Yukon Denali i got today and there is an ethernet-looking port in the center console. I know amps have that type of port but its built right into the console, any ideas?

 

[Big Buttons]

We could probably be more assistance with a picture.

 

[nkostop]

will this do it

 

[NathanJax]

Aftermarket old school phone connector for a built in car phone

Someone else here had the same thing