I meant more about the capable part, meaning even if they are off having them attached makes you capable of turning them on, and since I'm not positive if visible means the diode must be visible or the light coming from the diode is enough in which case the light bleed from inside the wheel well could still be visible and a violation.
I am pointing it out just so its thought about. I believe it's more for people who mount red or blue strobes on their grill or in their windshield but with the wording being vague I was pointing it out as a worse case scenario. Also as a reason to go single color for some people in states with even more strict laws.