Code to unlock Clarion system?

[Lunatic]

Hey guys hopefully someone can help me out here. I unhooked the batteries on my 2014 Seneca the other day to install some new ones. Started it today for the first time since then and the Clarion system is asking for an access code? I have no back up camera or anything until I can get this unlocked. Tried the reset button and that did nothing. I don't think the original owner would have set one as he knew little about this unit. He didn't even know it had an in motion satellite dome on the roof lol. Anyway, is there a factory default code or someway to reset this? I can't find anything at all in the manual.