I installed the Denali D2s today. The mounting and wiring were straightforward. The hard part for me was finding a place for all the harness cable.
I used these
L brackets to mount the lights to the lower allen screws that mount the headlight assembly to the bike.
I chose the "Standard dual intensity (high and low)" option. Connect blue Denali wire to high beam wire (red/black), white Denali wire to "running light" wire (brown if I recall correctly).
Don't confuse the bike's "low beam" wire with "running light" wire. At first I connected the white wire to the low beam wire (red/yellow). But when I turned on the brights the Denali's turned off. The low beam wire no longer had voltage/current with the high beam on. The white wire needs to go to switched 12V.
I used the SAE connector to connect the Denali "controller" to power. I bought
this SAE connector, cut off the ring terminals on it, cut off the ring terminals on the Denali harness, and crimped them together. Used heat gun to shrink the heat shrink tubing of the crimped connectors.
The Denali D2 wiring harness has a lot of cable. It took me a couple hours to route it all so that I could put the tank plastic back on successfully. I chose not to mount the on/off button since I always want the lights on. I just left it in the "on" state tucked in with the harness.
Tomorrow I'll ride 45 minutes to work in the dark and see how they do.