Need to export proxy with its own audio files

[Inlights]

Hello,

So i have this short movie project which im working on, and the problem is this:

First, when we filmed, we did not have any signal in the camera, and in order to get the audio attached to the clips, i exported a low resolution file, which i gave to the audio guy in order for him to attach the audio files to the clips, so that i could later attach these low resolution files with audio as proxy for the full resolution videos in timeline. In the timeline, when i have proxy enabled, i can hear the audio, but when i toggle them off, i cannot hear the audio. Same thing happens when i export the timeline, the clips have no audio because the project gets the final info from the full resolution media, which have no audio attached.

I tried exportin with "Use Proxies" on, but only the video files got the proxy properties, and the audio is still blank.

Question: Is there any way to tell premiere pro to export audio information too from the proxy files?

Thank you!