Need help with theft lock.

Hey guys. I had my tranny pulled and when I got my car back the stereo said loc. I found out the number to call and put the 202107 code in and it kept saying invalid account. Can anyone help me with this???? I called 1800 537-5140. :confused:

I went to the FAQ at LS1.com and found that they change the code every now and then. The new one is 06010. I can now listen to the tunes!!!!!!!:D