Sorry there are 4 harnesses and I'm having a hard time located which one I need to tap into for the remote wire. There are a few pinks amongst the 4 harnesses.

also which for rear speakers.

thanks quick replys greatly appreciated.

 

i want to say Red/White Black/Yellow are the rear speakers.. they should be in a plug together.. the remote wire you can use your ignition wire.. it's in the other big harness.. its grey.. it's next to a blue/yellow i think.. the other two smaller harnesses with smaller wires are for steering wheel controls/ipod adapter/aux

i've always remembered the red & black being positive because my old boss told me when i worked on my first speaker install in a toyota years ago.. he said "Only in the back of a Toyota can a red and black man be positive." lol.. and ever since then i never forgot it