2008 Toyota Tundra Upgraded radio

I recently upgraded my radio from the 86120-0C191 to the 86120-0C310. I did this so I could stream audio over the Bluetooth. One of the connectors does not match to the new radio and now the off hook/dial buttons and the Push to talk button do not function. I had this functionality with the old radio. When I go to the BT source it says BT AUDIO PLAYER NOT FOUND. Obviously the dangling wire in the back is the culprit. Is there a harness I can buy to fix this? Or can someone tell me the pin out of the cables for each so I can try to splice something together?

Thanks.