They will work just fine....if you install as per the directions.
If you want to run the wire internally on the left side of the handle bars you will need to make some modifications to the left grip
1) Cut off the fuse block because it is to big to slide through the bar
2) Cut a channel in the grip end so the wire will not be pinched in the grip clamp when tighten down by the switch box.
I did this on my limited and softail with little difficulty.
The last ones I installed on my CVO Street Glide and Road King, I ran the wire on the outside as per the instructions....I just ran the wired under the switch box and wire tied along the clutch cable. Not noticeable at all.
Also, no need to run wire to battery. Just tie into the P&A circuit
If you get stuck please feel to PM me.