You need to have Brady taken to a specialist.
I found this link that has some rescue babies that had murmurs:
http://www.smallpawsrescue.org/pup3/heartreunion.html
It talks about "coils" and surgery in some cases. Your baby is so young, a specialist will be able to give the BEST long term care or treatment options.
Keep us posted and give Brady extra treats and kisses!