95-97 854 trailer wiring/brake wire installation Topic is solved

[CIK7]

Need info for 95-97 850 sedan using a 5-way trailer harness.
After searching for the last 20 minutes, I don't seem to be able to find the post that talks about which trailer wire goes to which rear light wires. By that I mean the Volvo wire colors Also, I can't figure out how to add the blue trailer brake wire. Where is that supposed to go?

Edit: goofball thought the blue was for the trailer brake. That's only on the 7 way, I guess. Blue on the five-way is for a boat's reverse light. But if the blue trailer brake wire is on the seven way, why can it not be used as that on the five way? But if it can be, I guess I'll loop back to my previous question as to where to put it.

Edit2: goofball realized both a reverse and brake will need to be an output. I'll be using a 7-way on the Volvo trailer. I will also have a 5-way on the vehicle side.

[CIK7]

I found an answer by myself. Goofball. The blue wire usually goes to the reverse light for a boat trailer. However, it can also be considered accessory on some wiring charts. Others say it is specifically for the trailer brake. However, that blue wire for the trailer brake would go to a brake controller.