I plan on putting a system in my 1999 RX300 this week and i was wondering if any of you kno if i have to put in a code into my stock headunit after it is disconnected from my battery?

a quick response is needed since i am doin the install this week

any help is wanted!

thanks guys!

 

I disconnect my battery (to help my tranny) all the time, and I have never had to enter a code.