1. Go to Insert, choose DX Synth, and choose your favorite synth to add.

2. Make sure there is a checkmark in these boxes:

* MIDI Source Track
* First Synth Output (Audio)

And these are optional- whether you want Sonar to open up the synth configuration window (not always necessary):

* Synth Property Page
* Synth Rack View

3. Hit OK.

4. Your instrument is now setup. The MIDI will work through the MIDI track, so any MIDI recorded will be on this track. The audio will work through the audio portion of the instrument, and you can apply audio effects, raise or lower the volume or pan, and can route it out any audio output available.