When Curt did the test fittings, they saw that it would be fairly difficult to modify the panel so it would fit around the hitch. Therefore, they haven't tested how to trim the panel.
The purpose of the underbody panel is to smooth and direct the airflow passing under the car while it's moving down the road, reducing some turbulence.
Leaving the panel off will not harm anything, although leaving the panel off might have a very small negative effect on the aerodynamics of the vehicle.
The... view full answer...
After consulting my source at Roadmaster, I found that for the installation of the RoadMaster EZ Base Plate Kit # 521181-5 for your 2012 Scion xD, trimming of the spoiler, air dam, grille, or plastic fascia may be required and trimming of the lower air dam, air deflector, cowling and/or rock guard is required.
The instructions for proper installation of # 521181-5 are linked. They are very detailed and show all the modifications that are required on your 2012 Scion xD.
If you are looking... view full answer...
We do have the installation instructions for the Blue Ox Base Plate Kit # BX3778 that fits your 2008 Scion xD, but I'm not sure what installation video they saw as we haven't had a chance to install this kit yet. The instructions are attached to this answer page for you to reference.
For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these... view full answer...
In the scenario you are referencing you are simply adding one light to the left turn/brake light circuit and one light to the right turn/brake light circuit, which is perfectly fine if that's what you want to do. I would be unable to speak to its legality and would highly encourage you to take a look at your local laws but I can't see why it would be an issue.
So all you need to do to add these lights is wire in something like the Optronics LED Trailer Tail light # STL72RB by using 3-Wire... view full answer...
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