'99 Venture speaker wire color?

Just replaced my speakers in the front, but not quite sure on what speaker wire(s) are the + and -

theres a gray and brown for the left door
and a green and dark green for the right door

I've looked online for color codes, but none seem to match this one

could anyone tell me which is - and which is + ?

thanks much
-Dio

My factory manual says:
Right Front:
Dark Green is -
Light Green is +

Left Front:
Gray is -
Tan is + (could this be your "brown" ?)

Just remember - sometimes the actual wiring does NOT match the documents.

Take Care,

My factory manual says:
Right Front:
Dark Green is -
Light Green is +

Left Front:
Gray is -
Tan is + (could this be your "brown" ?)

Just remember - sometimes the actual wiring does NOT match the documents.

Take Care,

it worked, I had my left speakers crossed using the gray as the + trying to follow another diagram

thanks much