This orange wire I believe goes to this two pin plug on the back of the radio? Also the brown wire that’s on the two pin plug is it spliced into the harness with another brown wire? Reason I ask about the brown wire is i had one spliced in and am unsure of its function however it looked to be original which is why i think it may have went to the plug on the radio. Manual doesn’t really have a good diagram of this and my connector was cut for a aftermarket radio however I’m putting the stock one back in.