pull the radio and get the long number off of the back, alpine radios have a riveted plate with the # and pioneers have it on a white paper sticker that can and does fall off and get lost rendering the radio completely useless, it's held in with a 5 sided allen on ether side that's made from soft brass, if your lucky you can back them out with a small flat screwdriver but strip them and it's a bitch to deal with it, call your local dealer with that # and they should give you the code for nothing, if your dealer sucks and gives you a line call my dealer at 225-754-1200 and ask for parts then ask for a radio code
all america wants is cold beer warm cat and a place to take a poop with a door on it