No doubt. I used to install stereo's and alarms so relays don't scare me. I am leaning towards using the dash light signal to trigger this. Once the ambient light sensor shows dark it takes 10-15 seconds before the headlights are turned on. This would likely be better because driving under a bridge during daylight might trigger the retro headlights on for a second and then right back off which isn't good for them. I will likely install an override switch in the event I want to dim the interior lights and need the headlights on. It will just take a bit of time and wiring.
