Hello,
My install is just fine, I have this in a Chevy Tahoe and it is a 2 year old factory battery. The battery is not great and I think the voltage drops quite a bit when the key is on, engine off. It always starts good so I don't want to buy a new one just yet. The problem that bothers me is the fact the Empeg cuts out for 2-3 seconds before coming back up with the icon. It is kind of like a reboot. I know the Empeg should be able to safely run down to 9 volts or so, that is why I wish I could change the sensitivity level. When I shut my engine off the factory radio and Empeg stay on until I open a door, I love this feature but it always cuts out within 10 seconds of doing so. Sometimes it will do it more than once also.