#1bugsbunnyfan 10+ year member
Junior Member
We just got my son a car (1994 Mercedes E420) which has an Alpine CDA-7840 head unit. The stereo is GREAT, however it seems to go into "blackout" mode and, without the manual, we're not sure how to get the screen out of it. I've tried looking for a manual online, but have not had any luck. Can anyone help? Would be greatly appreciated. Thanks!