You have imported a Defender from Europe and are are super exited with it? Great.
Now if you try to hook a trailer to your tow ball, you may face a problem as the plug standards are different in Europe and in North America.
We can count mainly 3 different plugs
North America 7 blades plug
North America 4 round plugs
Euro 7 round plug
The main difference between euro and US style is that euro style plugs have distinct wires for brake and turn signal whereas US style have a combined wire.
This can be worked around with a small adapter that will convert/merge the signals
In order to hook a US trailer onto a euro truck, you will need a few items: