Just to pass along my solution to this awning light control. I too (2015 FR3 30ds) was disappointed with the dual connected front led lights and awning lights and after tracing wires in dash, decided on a simple solution with a dimming feature benefit.
PWM 12V Remote Dimmer
The (2) wires for the awning lights exits the chasis just below the floor (inside black wire loom) under the small black plastic cover just behind the passenger front seat. They run over to the battery.
I spliced in a waterproof in-line fuse leading from the battery to the remote box, capped off the end that did lead to the dash switch and connected the positive/negatives into and outgoing.
I mounted the remote sender to the side of the frame (forward of the battery) with wire strap and heavy duty velcro.
Another beautiful feature of the remote is when we go for walks and come back after dark (especially while dry camping) I can turn on the lights from a distance of about 30-50 yards and light up our site (making sure no slithery creatures have made camp on our outside rug).
I will try and add some photos of the install and locations if needed to help out.
Note: They do sell a waterproof version of this remote system, however I did not originally buy this. I used clear silicone (very liberally) inside and out of the remote sender box and terminals and have since been through numerous rain storms since last march (7500 miles) with no issues, however I would recommend a waterproof model so the install would not have to be done ever again.
Be safe and enjoy.