This worked. It's the #2 pin of the 28 pin connector. The reverse signal is finally triggering into the Scion head unit and my 12v camera displayed the image. Thanks![MENTION=142740]rossiski[/MENTION]
Not sure if you ended up getting this to work, but the trick for me was running the reverse trigger wire into the 2nd pin in the 28 pin harness, not the 24 pin harness as indicated in the instructions w/ the PAC TY-12! [MENTION=133792]Atlas415[/MENTION] pointed me in the right direction.
The only function of the PAC TY-12 harness was to provide the RCA input from the camera into the head unit (and also power if you wanted the head unit to provide 6V to the camera).
It took a while to figure this out, but everything ended up working pretty nicely with the back up camera install. Overall, pretty happy with the look of the head unit.
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