Help with putting aftermarket radio in my 2020 tundra

2020 Toyota Tundra Platinum

I need help with identifying the factory JBL speaker wires or if there is a harness that I can hooked up to the factory JBL amp to my aftermarket radio? I have looked and looked and can’t find nothing!!

 

Check out Crutchfield. They should be able to hook you up with adaptor cables and instructions.

 

So I did that and what I ordered I thought it was plug and play as it should be, but for some reason I hooked everything up and I have no sound coming out of the speakers at all just my sub and it’s very a low fade so I’m thinking it has to be something with the factory JBL amp has to be a harness or a way to bypass it.

This is what I ordered from crutchfield. The CRUX-SWRTY-61P wiring interface is suppose to retain all that as you can see in the other picture, but for some reason it didn’t work so not sure if I’m missing something or what?