Im trying to install a 6 disk DVD/Radio in a 99 tl. Im putting the code but Im getting a Err1 code. I haven't tried diconnecting the battery yet. Althought, I dont know is that a required step in the install process. Any suggestion would be helpful.

 

Well this is the '96 - '98 TL section, I'll move it over there for you

 

Try disconecting the antenna before entering the code