[BruceJ]

What I did was export the entire soundtrack from Premiere as one .wav file.

In 3ds max, use the track view and look for sound. Right-click the "sound" to open up the properties dialog. Set it to be your soundtrack .wav file.

In video post, simply do the video part (your targa sequence) as the input image event, and use the Quicktime as the output event.

Execute/run the video post and the sound should be picked up from the track view you set.

Just make sure the soundtrack from Premiere (export timeline - audio only) is in sync with the beginning of your targa sequence.