^yep this is the way to go.This is how I did mine on my 2012 Track. I have blue LED's. I tapped into the map lights and used a 3 way switch. Up is for courtesy light function. Door opens, lights are on, once the door is closed they dim as the courtesy lights do until off. Mid position is foot well lights off. Bottom position is on at all times (as long as the ignition is on ACC mode. For this mode I tapped into the cigarette lighter wires.
I had mines hooked with a music box as well.
Turning it on with the always on switch meant I can adjust to go with the bass from the music