1991 Uk Mr2 Electric Aerial Wires?

[Galee]

Hi all I have just bought a 1991 Toyota MR2 2.0 U.k car. It didn't come with a radio so I want to put one in but somebody has cut all the wires I have found the + and - illuminate and all speaker but can't seem to get the electric aerial to work I know it is the blue wire from my head unit but what wire/wires is it to connect to the loom end in the car to make the electric aerial go up and down? I have tested the electric motor on the aerial itself putting a + and - to it and it work fine. Anyone have any ideas?

Many Thanks

Galee

[Kelvyn]

Check this link http://mr2manual.teq.org/ewd17.html