The wiring block will go in a tongue box, so out of the elements, along with all the other trailer wiring.
That gives me a easy way to add the brakes when I eventually swap axles on the m101.
This may be the better answer for euro 7 to 4 pin connections..
Convert the euro 7 pin to 4 pin then wire as you say directly to the US 7/4 pin female truck side already posted.
I can eliminate the rover parts converter box and easily add in the Toad 12v connection.
I'm dispose to pick up the trailer tomorrow but looks like that will be delayed with snow/ice coming tonight/tomorrow
Which is a bummer since I need to pull the hard top as well and leave it for paint with brewie while I'm there.