OBD2 Connection
An easy place to find the ports for connecting the cables is the OBD2 port at your fuse compartment.

Pop out your fuse cover down the steering wheel and you should see the obd2 port. Open it's cover and the port is exposed.

The cables must be connected to the 1 and 9 port as marked at the image. The easiest way is to stick in the CAN A to the port 9 and the CAN B to the port 1
If you want something permanent you should find the cables of the ports 1 and 9 behind the obd2 port and connect them to their respective cables as i told you from the radio.
When you finish, close all covers, connect all plugs to the radio and put it inside the console.
IMPORTANT!
Some aftermarket radios have different pins for power, antenna, ground etc. Before inserting the stock unit, use a multimeter to see if they are correct looking at the schematic above.
Time for the last part!