Thanks, there are 3 wires according to the schematic and have the 54/4 designation ... Is this for ID purposes or is ther another branch somewhere ?

Hi All, I bought a wreck '06 S60 2.5t AWD and all damage is repaired and all repainted but I don't see the wire for the horns... I have the horns in and no apparent hookup . Does anyone know where I look for the + and - wire to connect to the horn ??? thanks, MIKE