I disconnected the battery to replace an old blown out speaker. When i was done i reconnected the battery and the stereo asked me for a code, I then put in random codes as my grandfather made it seem like he didn't know it. And now all it says is, "wait" even if i disconnect the battery. And it just so happens that my grandfather does have the code now, so he's pissed at me cause he didn't realize i would have to disconnect the battery to replace a speaker (Dumbass). Any way around the "wait" ?