Radio Question

[Cam51]

Is it possible for a trigger to detect who activated the radio ie: 0-0-1.

I'd like it to be available for every player (east and west), so that when a player on west hits 0-0-1, a sideChat message pops up for that team, and displays that players name (the one that hit 0-0-1) and have a "destroy" marker placed infront of the player about 50m.

is this possible?  I have heard that you can't get the radio command to tell who activated it. Is this true?

West sees the message for west and marker for west.
East sees the message for east and marker for east.
(just to hit it again)
Cam51(on west side) hits 0-0-1 and the following chat comes up:

Cam51: "Radio Message 1"

Also a destroy marker type appears on the map 50m infront of Cam51.

No-one on East can see the message of the marker.
Is this do-able?

Thanks for any help.