All you had to do was ask...
I didn't take any pictures as I was doing it 'cause I wasn't sure it would work.
From Napa you need 2) LS6469 sockets and 2) 1157 Amber bulbs.
It helps if you have a big step drill bit like a Unibit. It makes for a faster, cleaner job. I think it took around 30 minutes to do.
1) Remove turn signals, retreat with them to a comfy work bench.
2) Remove the existing marker light bulb.
3) With a dremel, carefully remove all of the plastic that stands off the back of the reflector around the light hole.
4) Drill out the hole (or carefully Dremel) to receive the snap-in socket.
5) Blow out the plastic shards now stuck in the lens.
6) Cut off old marker light plug and (in your case) tap into the turn signal on your ARB. Connect these wires to the socket.
7) Add bulb and test. You want the larger filament (Brighter) to be the turn signal.
8) Repeat other side.
Here is a link I reviewed before I did mine:
Toyota Tech: Turn Signal Relocation