help, problem headunit/iso lead,, cant finsh install, :/

[Chem_ali]

ok, i was doing a new install in my car new sub and headunit (poineer DEH-P7000ub)
Everthing went ok untill i needed to take the headunit out of the din for a final check , a wire was caught , so i pulled a little harder and something let go
i took a look and behold the blue remote, turn on wire had come out out off the iso harness. the wire was ok & still had the internal crimp on, all thats needed is for it to be put back in the harness ,,,
the problem is i dont know where it goes
there are 3 empty wire slots in the harness
tryed looking for diagrams, pictures but no joy.. can ayone help?

[Supraking]

if you havent sorted this already, plug the iso into ur car wiring and trace the wire from the head unit through the plug and into the cars wiring. it might give u a better picture as to where it goes