Line out converter install

[BigRedDog87]

Hey, I'm currently trying to figure exactly which wires I need to tap into to install a line out converter. I've searched previous posts and cannot get a definite answer. I just picked a 21 trail boss custom 7in display standard 6 speakers non bose. I contacted crutchfield earlier today to see if they had a diagram. Unfortunately they have an incomplete one. This is what they told me The ground is white/black, the constant 12v is red/yellow, and the front left right door negative is light green/black which probably means that the positive is a solid green. Anyone have a definite answer on which wires are which?

[remanaz]

Remove the door panels and pull the speakers to see the wire colors. 

 

This pic is the left dash speaker. You can see the colors. I don't know if either has a stripe though. That was a while ago. Looks like there could be a blue strip on the orange wire. BTW the dash speakers share the same signal as their corresponding front door counterparts. 

Edited October 4, 2021 by remanaz