Power antenna power

[strykr14]

Guys,

Got a bone stock stereo system. What wire on the harness powers the power antenna?

 

[itwonder]

Looks like it should be O/LB . The view in this diagram is looking into the harness connector that plugs into the antenna controller, a small black box located behind the glove box on the right hand side. The lead that comes from the radio is #747.