Does anyone know how to unlock a stereo to a 1994 honda accord. Or how to get the unlock code other than going to a dealer?

There are not any tricks to get the codes for your radio. Check in your glovebox for stickers on the inside, check armrest,owners manual, lots of times it gets written down.

Some dealers will just give you code over the phone if you have the serial number on the back of the radio, I would try to keep calling dealers till you find one that does.