There are 2 sets of nomenclature for the old MKI, SW and MMI. I have seen that the Nav has one set of software and the Video Module has another. The screen shows the one for the VM. The MKI nav can't work without the VM as they have a special small connection plug the none of the other later VMs have and also the MKII and later can work without a VM but MKI can't. The screen will never show higher than 1-1/72 even for SW of 8.0 They stopped upgrading MKIs at Ver 15. 15 and all above give you the same. I had a MKI from the factory in my car and then went to MKIII and MKIV.