DRL wiring harness

I have a 2017 Sr5. thinking of getting the DRL installed on the truck. Question I have is about the wiring harness. Do all trim models come with the same wiring harness, or does Toyota have different harness for the different trim packages. Obviously mine does not have the DRL lights.
Thanks

 

You sure? 2nd gens just use the turn signal lights for drl, no additional lights. My’14 base model has the stalk with that setting on it.

 

2017 SR5 has incandescent turn signal bulbs that have dual function (DRL/TURN). It might be turned off in the system. You're going to have to take it to the dealer depending on what Head Unit you have in in your Taco.