Aftermarket Radio Wire Help

Hi everyone,

Hoping someone can help me out with this. Search through the forums and was not able to find an answer.

I just purchased an aftermarket radio along with the Maestro RR and Maestro TO1 (adapter & harness that is made for my 2010 Prius with JBL to keep SW functions, factory backup camera, etc). I have completed all the wiring and everything has been plugged EXCEPT for 1 adapter. I can not for the life of me find the wire from my car that will fit this adapter. Now I'm wondering if A: This specific adapter is incorrect and the 2010 prius does not have a plug that fits this, B: The plug has to be somewhere in my car and I just need to look harder to find it, C: My car is missing the wire somehow.

Also wanted to add, I had a factory JBL radio with Navigation and all worked perfectly.


Here is an image of the adapter I need a home for.


Below are all the radio wires from my car. None of which fits the adapter in above.


Hoping someone out there can help this novice out!

Thanks!