Does anyone know if it possible to add a proximity sensor to the standard alarm on an 03 WRX.

 

it is not a listed option for the sigma m30, so I doubt it.

 

it is not a listed option for the sigma m30, so I doubt it.

 

it is not a listed option for the sigma m30, so I doubt it.

 

No

 

sorry my finger had an epileptic fit on the reply button

 

Maybe

You could ask an alarm fitting place. If the sigma has a spare trigger input then it could be possible.

A dual zone one like the Clifford one maybe more difficult as it would have to hook up with the siren to make the warning chirps.

H

 

Clifford one won't go