I wanted to know how can we implement AAM without configuring AA for a mobile app.It would be helpful If there is some documentation present to do the same.
You can also refer to the doc here for more detailed information on mobile implementation.
One of the options is to implement Adobe Launch by creating a mobile app property. This will help you to implement and maintain AAM via Launch UI going forward.
Review this for more info: Overview - Adobe Experience Platform Mobile SDKs