Courtesy / Puddle Lights Wiring Help

[KyTacoma16]

Anyone know where and what color the wire is that sends the signal to the interior dome lights to come on when you lock/unlock or open your doors?

I'm trying to wire a relay to that wire for the signal to switch the relay to turn on under carriage lights (courtesy/puddle lights)

I have tried splicing so many wires and can't find the signal one.

Thanks in advance.

 

[btp001]

I have a 13 so hopefully yours is the same.. Pull the little tray to the lower left of the steering wheel off to access the fuse panel
There's a black plug to the left or the fuse box.. The ground wire for the lights will go in the fourth slot from the left on the top row there's a blue wire in it and you can just wedge the ground wire in therethe white wire is the ground for the lights and you'll need to run the power to the battery or any 12v constant source here's how they turned out.. That's how I did it, I'm sure there are different ways.