Aidan's new therapist stated today, she is great. She gave me some great tips to help Aidan localize sounds and we noticed today that he is reacting to sound! He blinks when there is a loud sound, so it is like he is startling, but not like a newborn startles. This is great news!
I went through the kids toyboxes to find the toys that make the most sound, zylophone, piano toy, rattles, hammer, and put them in a special place just for Aidan. We will be working as much as possible every day with him to help him localize sounds.