Here is the simple solution I used for tow lights. TowMate RVHW32 Wireless RV Tow Light Package
. My Edge has OEM LED lights that are ridiculously expensive to replace. I didn't want any potential warranty issues from adding wiring, or even cutting holes. So I went with the wireless solution with the 7 Pin adapter / transmitter that just plugs in to the MH's trailer wiring connector.
That choice exposed a secondary issue...
There is no
horizontal metal to attach them to!
The Edge's roof is covered with glass and plastic and the rear bumper is plastic. So I grabbed a spare 8 inch drop receiver, flipped it over for a "rise", and had a 2 foot section of 2 inch square tube welded to it. Installed that in my OEM tow packages hitch and I'm good to go!
Now my wireless tail lights are level with the top of the bumper and solidly mounted. I store the light "mount" in my RV's hitch when it is not in use...it makes a serious bumper protector!
I am really happy with the TowMate system. And TowMate's customer service and tech support has been excellent. A bit pricey on their website but Ebay, and other websites, have them discounted to around $230. I wouldn't hesitate to recommend their system...