Logic of naming actuators in VW-group is simple it contains "N" + actuator number. The actuator number is unique. Here you can find fitting location, connectors and some basic information about actuators.
To our mind, actuators information is reference, so there is only simple search by number.
-N199 Side airbag igniter, driver side and -N200 Side airbag igniter,
The Illustration applies to both the driver side and the
Fitting location: Seat frame
1 = Side airbag including N199 side airbag igniter, driver
side or -N200 side airbag igniter, passenger side