Thanks for the feedback....I should have been more specific. I have a 2005 outback with the antenna imprinted on the rear windon, not a power antenna. It is a stock radio.
There are two wires that connect to the antenna amplifier which is mounted to the hatch. One of the two wires is the antenna wire, the other wire is a power wire (black with orange) this wire should have 12 volts, but does not. I thought there might be a blown fuse , but all fuses are good.
Any idea where the power to antenna amplifier comes from? I am certain this is the problem , because I ran 12 volts directly from the battery to the amp and it works fine.