First off, let me say thank you for the assistance from this forum on the integration of my head unit.
I now have everything working as it should…the reverse camera, navigation, steering wheel controls, and factory microphone all on the JBL Audio system.
My original system was the factory navigation unit in a 2007 double cab, with blue tooth, reverse camera, sonar, and steering wheel controls. After using the factory navigation unit for a month I decided it was time to go. My last truck had an Eclipse 726E which I loved, so I decided t go that direction. The other nice thing is that Fujitsu Ten who makes the factory Toyota units also makes Eclipse, so the integration is simplified in many ways.
I am going to give an outline of the connections to save everyone the trouble of the research I had to do. I hold no responsibility for the following; I am just helping to assist you in the connections which worked for me, check the wiring for yourself.
You will need the aftermarket mounting kit and JBL harness adapter (Scosche Model number TA07SR), about $95 on eBay. Follow the instructions for the Scosche harness and wire to your head unit. The Scosche dash kit is a pretty good fit and a VERY good color match. The Scosche adapter wiring harness has three wires which are not listed in the manual; I called to find out what they are:
Orange = illumination
Blue = Power Antenna
Orange/Black = Dimmer Ground
For the steering wheel controls:
Use the k21 connector on the back of the factory head unit. The steering wheel controls work like the factory, except for the voice command button on the steering wheel now mutes the audio, very nice. The Bluetooth buttons answer and hang up the phone, and all of the audio buttons work properly.
Toyota Light green = Eclipse Brown/Black
Toyota Gray = Eclipse Brown
Toyota Brown = Ground
For the camera:
Use the k7 connector on the back of the head unit. If you have the eclipse unit you can simply use the power output on the unit which is 6 volts. The factory camera wants 5-7 volts. If you are using another unit, you can use any USB car charger and hard wire it to the cigarette lighter; this will give you a solid 5 volts to the camera. Make sure you wire to the switched cigarette lighter so the camera is not powered all of the time.
When facing the rear of the Eclipse the wiring is as follows:
Upper left, pin 2 = Camera Power
Upper Right, Pin 1 = Video + input
Lower left, Pin 4 = Ground
Lower Right, Pin 3 = Video – input
I purchased an aftermarket camera adapter made for the eclipse to adapt it to a standard video camera. It had pins 1, 3 & 4 no pin 2. I moved pin 4 to the pin2 location on the plug, this gave me power, video + and video – from the head unit. I took the camera ground and tied it to the rest of the system grounds.
Then I connected these wires to the factory K7 connector wires as follows:
Toyota pin 21 white/black = Ground to common
Toyota pin 24 Black = Eclipse Pin 2, Power 5-7v
Toyota pin 22 Red = Eclipse Pin 1, Video +
Toyota pin 23 Grey = Eclipse Pin 3, Video -
For the Aux Jack:
Use the k5 connector on the back of the head unit.
The Eclipse does not have the Aux input, so I did not connect this. I am posting the below information that I researched simply so that others have a more complete guide to replacing their stereo.
Toyota pin 3 Black = RCA input Left +
Toyota pin 2 Red = RCA input Right +
Toyota pin 5 White = Shield for both right and left
For the Reverse Wire:
Use the k6 connector on the back of the head unit.
Toyota Pin 5 Gray wire
For the Microphone:
I did a substantial amount of wiring, trouble shooting, building of power supplies, and legwork…to be beat by the OEM microphone amplifier. In the end I tried the simplest of things; I bypassed the Microphone amplifier and simply connected the factory microphone. This gave me a microphone that fit perfectly into the location and worked great. The OEM mic DOES NOT need the amplifier when used with the Eclipse head unit, and I can assume this is the same for all head units.
I tested with a parrot mic and the Eclipse mic, both held in numerous areas of the vehicle, and in ALL cases the Toyota OEM mic was the clearest.
To bypass the amplifier is easy, here it is:
Behind the factory radio, on the k7 connector, connect the following:
Toyota Brown wire = Tip + of a mono 1/8” headphone connector
Toyota Yellow = Ring – of the headphone connector
At the microphone in the headliner, Remove the mic and do the following:
1. Cut the four wires between the plug and where they enter the wire bundle.
2. Connect two pieces of wire to extend the Brown and Black wires, 3” works fine.
3. Mask off or heatshrink the extra wires.
4. Open the mic casing and expose where the mic connects to the amplifier.
5. Solder the new wires to the circuit board where the mic connects.
6. Connect Brown to the mic +, and Black to the mic -.
7. Re-assemble the mic and install in the vehicle.
8. Plug the mic into your head unit.
9. Enjoy the factory microphone!!!
I hope this helps others; it took a long time to gather all of the information. I will post other documents to support the wiring diagrams for the vehicle.
Good luck with you installation!!!