I've been trying to add a backup camera that will display on the iDrive screen in my 2009 Z4. Despite help from the tech staff from the manufacturer of the unit, I cannot get the system to work. I'm beginning to suspect the problem is the existing iDrive software installed on the vehicle. There is no "update" option anywhere in the menu system, and the "About this Software" contains several references to it being "Thai open source software". I'm wondering if this is non-BMW software that the prior owner uploaded into the system. I'm attaching a screen shot in the hope that someone can identify the software and give me an idea how to replace it with the latest version of BMW's iDrive software.