I went to 1A Auto's site. They do not seem to have any mirrors listed for a 2017 Expedition EL XLT. Do you know what F150 mirror will fit my 2017 Expedition?
None of the F150 mirrors will fit
However...ANY mirror for ANY 03-17 expedition or navigator is interchangeable. Wiring or features may vary, but it will fit.
Including, yes, the 1A tow mirrors.
Iiirc correctly 1A's site just aint updated and was written before the year 2017