Have you popped off one of the light lenses to see what is under there?

I would wager that these two variants are similar with a center module for your lights that simply has some hinge plates in it.

If that is the case, then you would still be in the game.

Update:
I just looked at the part numbers for the 2 cars, and the Non-navi base P/N is 34404-SNA-A11XX, and the Navi is 34404-SNA-A31XX.

This tells me that the 2 parts are very similar, with probably only the center module being different. So if this is the case, then the only addition that you would need are the shorter lenses ( 34401-SDA-A21 LENS, R. & 4402-SDA-A21 LENS, L. @ $2.35 ea.)

If you will pop off the lenses and take a picture and post it, I can probably tell you if this will work.