I used AppleHDAPatcher to patch my sigmatel 92xx , after install not only i have no Audio, but also, my bluetooth mouse dont click anymore, scroll works, and it moves but left and right click dont.

I dont know how to reverse what AppleHDAPatcher did. thanks in advance.

Always make a backup copy of your kext before modifying it. You might want to put up your system info if u want people to help too. My recommendation is to find an original one the Internet. Assuming ur on 10.5.5 google it and u should find the original kext somewhere or use the leopard OS DVD and pacifest to extract the file you want. Then retry the procedure again or find another kext.