The wiring you found is the fog loom and the wiring is complete up to the fuse box in the cabin. However the stalk wiring, fuse box wiring and the fog light indicator in the cluster wont be there if you have an Altise or Ateva (black clusters) in the cabin. The position for the fog relay is empty on the back of the interior fuse box and the fuse (15A) should already be there but in terms of putting a relay in there and changing the stalk its not going to happen. I managed to use the existing engine bay loom on my 36 camry for fog lights but it involved getting wiring, stalk and relay/relay holder from another car for the cabin side of it and getting creative. I dont have a fog indicator in the cluster but i can see if they are on or not.
