So the stock stereo on my 2004 Si says "code" and does not do anything no matter how many times it's turned off and on. A friend told me that this is probably an anti-theft thing when the stereo head gets disconnected and that all is need is to put in the reset code using the preset buttons. I was wondering if there's anywhere to find that code or if anyone knows it.

 

From the FAQ's thread (here: https://honda-tech.com/forums/honda-civic-2001-2005-78/faqs-guidelines-read-before-posting-2101211/)