Boss bv765bl aftermarket radio install

I want to install an aftermarket radio ( boss bv765 bl ) into my 2015 Toyota tundra sr5 that has an existing o.e.m jbl radio with amp. The aftermarket radio head unit has a single 20 pin harness with standard color coded wires. The tundra o.e.m radio wires are not standard so I need to know how to match same with the aftermarket wires. Help!

 

You can find the full wiring diagram here: All Years Complete Audio System Wiring Diagrams | Toyota Tundra Forum

Speaker colors should be:

You'll have to open the full diagram to find the other wire colors. At minimum, unless you're going to cut the factory plugs off, you'll need the

$8 Metra 70-1761 Radio Wiring Harness For Toyota 87-Up Power 4 Speaker

Metra 70-1761 harness that's color coded like this:


If you want to retain steering wheel controls, fader, etc., you're going to need a different adapter/harness of some sort. Enter your year/JBL on Crutchfield and find your radio. Click on "See the installation gear you'll need" to see the different options and what features they keep.