Here is the typical pinout looking at the back of the radio (pins facing you).

For operators leveraging TIS (Technical Information System) repair schematics to build auxiliary audio injectors, the rear of the module typically contains an additional 12-pin or 20-pin small-format data bus port (often called the AVC-LAN or Toyota external CD changer interface).

These modifications require moderate to advanced soldering skills and a comfort with reading circuit board schematics. Always review a specific guide for your exact model before attempting.

If your Toyota Fujitsu Ten 86120 radio does not have an external JBL or premium factory amplifier, it will feature the industry-standard Toyota dual-plug setup. Here is the universal wiring color code and pin function map. 10-Pin Power and Front Speaker Plug Pin Number Standard Factory Wire Color Aftermarket Harness Color Front Right Speaker (+) Light Green Pin 2 Front Left Speaker (+) Pin 3 Ignition / Switched +12V (ACC) Pin 4 Battery / Constant +12V (Memory) Blue / Yellow stripe Pin 5 Front Right Speaker (-) Gray / Black stripe Pin 6 Front Left Speaker (-) White / Black stripe Pin 7 Ground (-) Pin 8 Power Antenna Trigger (+12V Out) Black / Red stripe Pin 9 Amp Trigger (Factory Amp Turn-on) Pink / Blue stripe Blue / White stripe Pin 10 Illumination / Dimmer (+) 6-Pin Rear Speaker Plug Pin Number Standard Factory Wire Color Aftermarket Harness Color Pin 1 Rear Right Speaker (+) Pin 2 Rear Left Speaker (+) Pin 3 Rear Right Speaker (-) Violet / Black stripe Pin 4 Not Used / NC Pin 5 Solid Ground Reference (Chassis) White / Black stripe Pin 6 Rear Left Speaker (-) Green / Black stripe Step-by-Step Installation & Troubleshooting Guide 1. Identifying Amplified vs. Non-Amplified Systems

Provides memory for radio stations and clock. Switched Power (Red): Turns the radio on/off with the key. Ground (Black): Usually connects to the car chassis. Lighting/Illumination

The complete (found on the top casing label).

Most standard Fujitsu Ten 86120 series radios feature specific connectors on the back. According to service discussions for this series, units generally have a and a bottom plug :

Help you find a for your car model.

The 86120 head unit sends low-level data signals to a remote amplifier located under a seat or behind the dash. If this is the case, standard speaker outputs will not work without an amplifier bypass harness or a specialized interface module (such as a TYTO-01). 2. Splicing into an Aftermarket Harness

I can provide the exact wiring schema or adapter recommendations for your setup. Share public link

). These robust, cassette/CD combo units were standard in Camry, Corolla, 4Runner, and Tacoma models.

If you own a late-90s to mid-2000s Toyota (think Camry, Corolla, Avalon, or even a Lexus ES), you have probably stared at the back of your factory radio and seen a gray metal casing with the stickers and a model number starting with 86120 .

Most Toyota Fujitsu Ten units, including the 86120 series, use the standard Toyota dual-connector setup for power and front/rear speakers. 10-Pin Connector (Power & Front Speakers)

Shows 12V only when the key is in "ACC" or "ON".

Only if your aftermarket unit has a feature like "Speed Controlled Volume" (SVC) or requires it for a GPS navigation unit. Most basic stereos do not require this connection. If unused, insulate the wire.

Do not trust random forum posts for your wiring. Use these sources: