Hi bro, sorry for late, I was busy. Here they are:
The connector from my car
And I got this connector from my friend
Then I connected it to my car, just matched the wired colors. If your car's wire is difference color, just follow the order in the pic above
For the camera signal (pin 5), it is used to turn HU to reverse screen when reversing, you will see the wire's color matched with it from the 141 harness, then connect it. DONE.
Very easy, the hard thing is how to get the connector.
Read this to get more camera signal information
1: Parking brake 3: Speed sensor input 5: Reverse input 3 and 4 no wire.
These pictures are not from my car, you can read them here:
http://www.supraforums.com/forum/showthread.php?391532-Toyota-Radio-Information