does anyone know which positive and which is negative for the rear left anf right speakers i just got mu stx and this hindering my trucks sound system from being upgraded please help....or does anyone have a website i can see the wiring diagram at?

 

What year truck is this?

 

2004

 

Left Rear
Grey/Light Blue +
Tan/Yellow -

Right Rear
Orange/Red +
Brown/Pink -

 

thanks bruddah ill post pics when im done cuz!!! aloha