I often use the Ford Nav when I am mountain biking in a remote area and have poor signal on my phone. I've found it's more reliable to at least get me routed out of the area.
I use a wireless carplay adapter, so I just need to unplug the dongle from the USB port to use the built in nav.
What size bike? Everything I've read about the interior bike rack is ambiguous about the size limited. I have a L Scott Spark for the summer, and an XL Salsa Beargrease fat bike that I would love to keep the salt off of in the winter.
I had the same issue with the Kuat Piston Pro rack.
Here is what I did to resolve it.
The 4 pin wiring diagram (attached) shows that the park lamps are Brown. The right turn signal is Green, and the left turn signal is Yellow.
I ordered 3 load resistors from the eTrailer.com site...