Review on Scosche TA02B: Color Coded Wire Harness for Installing Aftermarket Stereo in Toyota Vehicles (1984-2017) by David Ross

First of all, no matter what the Revain results say, this will fit my 2006 Tundra double cab WITHOUT the JBL system. Obviously there's a lot of confusion with Toyota stereos, certainly for the first-gen Tundra. If you have a standard JBL system or a system with rear entertainment or even a system with rear headphone jacks, you also have an external series amplifier. If you have an access booth, you most likely have it, no matter what standard radio it comes with. These radios have a 20-pin connector that goes to an amplifier (behind the stereo in a regular cab, under the back seat in an access cab, behind the back seat in a double cab) that has 10-pin and 6-pin connectors like these harness wires. . You can bypass the amp by plugging it into the standard cable it comes with, but I can't tell firsthand how well it works, or if it works at all. Instead, most people use Metra TYTO-01 - Metra TYTO-01 JBL Amplifier Interface Harness. However, some have a non-JBL system with an external amplifier (made by Fujitsu ten) and the TYTO-01 doesn't seem to work with it. Anyhow, if you don't know what stock system you have I highly recommend removing the radio before ordering to confirm if you are going for a 20 pin harness from JBL etc or a 10 and 6 pin have a wiring harness like this. I've been fortunate enough to only have the most basic standard radio in my crew cab and this is the right mount for it. All the wires fit into the new stereo's wiring harness and it was a simple plug and play installation.