2017 rear speaker wires to LOC

Hello all. Im currently doing my stereo build. All upgraded speakers. Now time to add my amp. Only question I have for amp is where to get rear speaker wire from to go into Line out converter. When Installing rear speakers they were only black and white wires. They werent color coded. See attached pics. I do not want to pull head unit id rather tap into wire under driver and passenger door thresholds. There is no way they used black and white wires for every speaker the electrician would get mixed up if that was case. Anyone have a 2017 wiring diagram?

 

Incase anyone needed this for future rear left is black and white and rear right is blue and green. They are the thicker of the wires in the set cause some other wires are same color but much thinner. As far as adding an amp I located a post that remote wire goes to grey wire behind headunit. The grey wire is the power 12v radio on wire

 

On the left side i could only find one thicker wire.. the only black and white wires i saw were the skinny twisted ones. Maybe im looking in the wrong area

 

Having a little trouble installing a line out converter for my amp into the rear driver side speaker. I can't find a wire diagram anywhere. What colors are you hooking up to?

 

On the right rear did you happen to figure out which of the blue and green was positive and which was negative?

 

Good info thank you. which one is positive and negative?

 

2020 colors are different. Use the front speakers and head here

https://www.tacomaworld.com/threads/2020-tacoma-sr5-non-jbl-wiring-diagram.656554/

 

Thank you for your reply . The rear righ speaker in my truck is still blue(positive) and green(negative).