That would be a BT ISO DIN connector.  Most of our heavy duty radio line would direct plug into that   Read more...

Would need to know the year of the   Read more...

Send pics of the radio plug and the truck to "contact@bigrigstereo.com"
We do custom harness of this   Read more...

On this page we have furnished the listing we have for speakers sizes for the semi trucks.  The list is not perfect so if you want to be sure, pull the speaker out and measure.


SPEAKER SIZES
http://www.bigrigstereo.com/speaker_application.html

Wish we had a better info for you but for now this is the best we have.
Have a great
  Read more...

Wire it to the radios factory harness and then it will plug into the trucks factory harness.  No cutting of the trucks   Read more...