Electric Aerial, Refitted power aerial not working? Options

[Ibzy]

I've just recently fitted a standard powr aerial from my old '95 Celica to my "new" '97 Celica. The owner before me had fitted a static aerial before I bought it, which got snapped off and was very dangerous, so I fitted the one I took out of the last one before scrapping it (inconsiderate dicks crashing into parked cars!)

Anyway, all cables and power is connected, I've tested the plug going into the aerial and it has 1 constant live and 2 or 3 ignition live, so I know power is getting to it. When I turn on the radio, nothing happens. Theres no sound of a motor "trying" to work or anything, it's as though the aerial doesnt recognise that the radio is on?

This worked in the old car before I took it out - any ideas what I may have missed? There is also a ranodm green switch in my dash that's not connected to anything, but the guy said it was to do with the aerial (?).

Cheers