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I just replaced the factory stereo head unit in my 2006 Sequoia Limited using the AXXESS TYTO-01 wiring harness and the Metra Axxess ASWC-1 Universal Steering Wheel Control Interface. This went well and works great. Now, I'm trying to get the rear seat entertainment system working. I purchase the Metra 71-8113 Reverse Wiring Harness so I could have the wiring harness to plug into the disassembled factory unit, all that is left is the mainboard. I have wired in the following wires to the pins:
1 battery
5 TX+
7 mute
10 ground
11 accessory power
13 antenna
15 TX-
20 ground

When I have the aftermarket stereo unplugged and plug in the replacement harness with the two other stereo wiring harnesses (R19 & R20) the RSES powers up and DVDs play. However, when I plug in the aftermarket stereo which uses some of the same wires, the RSES stops working. I'm guessing I'm getting some interference or something from the aftermarket head unit. Can anyone tell me what I'm doing wrong?
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I just replaced the factory stereo head unit in my 2006 Sequoia Limited using the AXXESS TYTO-01 wiring harness and the Metra Axxess ASWC-1 Universal Steering Wheel Control Interface. This went well and works great. Now, I'm trying to get the rear seat entertainment system working. I purchase the Metra 71-8113 Reverse Wiring Harness so I could have the wiring harness to plug into the disassembled factory unit, all that is left is the mainboard. I have wired in the following wires to the pins:
1 battery
5 TX+
7 mute
10 ground
11 accessory power
13 antenna
15 TX-
20 ground

When I have the aftermarket stereo unplugged and plug in the replacement harness with the two other stereo wiring harnesses (R19 & R20) the RSES powers up and DVDs play. However, when I plug in the aftermarket stereo which uses some of the same wires, the RSES stops working. I'm guessing I'm getting some interference or something from the aftermarket head unit. Can anyone tell me what I'm doing wrong?
Im in the same boat as you guys. I have been trying to figure out which wires are required to make it work. So far I have pins 1,5,11,15,and 20 on R4 connected and pins 9 and 10 on R19 connected with the factory head unit. I have installed a pioneer avh-501ex using a pac rp4.2-ty11. Everything as far as stereo works great but obviously the DVD wants a signal from the factory head unit. My factory unit didn’t have nav so I was able to take it apart and make it much smaller. As of now, I haven’t gotten it to work, I am wondering if I need the shielded ground (pin 14 R19) or any others?
C6D7A463-B10A-450E-BD75-C70E8C5F762C.jpeg
 

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Sorry to revive still an old thread

So, new to this group, but I owned a 2004 Tundra(RIP) since 2009 and recently got a 2008 sequoia. It has the rear dvd system, but has the jbl non nav radio. I have been looking all over for info about retaining res. Then I found a picture that may or may not be the answer everyone has been searching for.....
154361

This seller has this thing running on the bench, with what just appears to be a POS and neg.......if anyone could look into this, I think this would be greatly beneficial.
 

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If anyone is interested, I have the factory Nav unit for sale. It DOES work with the Rear Entertainment tv set up. I had the same thing in my 2004 TRD Limited with Rear Entertainment and JBL. Everything worked perfectly. I sold the truck but kept the Nav piece (with GPS antenna).
I know its a long shot, but is it still available? And if so would you ship?
 
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