Ya I know what hose is the vac and breather for sure as I have traced them. This line I'm talking about may be antilock brake related. It starts in behind the rotor in the wheel end somewhere and goes up(along with the brake and Vac line making 3 lines from the wheel) to the inner fender mud guard where it stops being a black vac hose and then has a little electrical plug(the black hose goes into the electrical plug) the wires on the other end of this plug then go into the harness somewhere.

Could they have ran wires through the black vac line?? It does not feel like it

On a side note my 07 gets its vac from the brake booster setup on the driver firewall. The hose goes from the setup behind the battery towards the intake behind the air intake setup then on to the brake booster with a check valve right before the booster(mine is shot)