Yeah, get rid of the stock system and get an aftermarket changer. No, not really. I have no idea bro, good luck with that. Hopefully someone else has a good tip for ya. You could try unconnecting the cables to the battery, thus resetting the stereo. But make sure you have the code to unlock it if you try that. I've never been a fan of any stock system I've come across. Even the JBL system with the built in rear sub in my bosses new Camry sucks compared to my $139 pioneer player and 5 year old polk 5 1/4's and 6x9's from my old accord that I paid about $300 on Crutchfield half a decade ago. I got rid of the player in mine (single CD mind you, not the changer), sold it on eBay and had more than enough for a good pioneer player. I just don't dig stock.