Read ID7 Recovery v2 carefully... "Don’t worry about the error messages and after a minute turn ACC off and on again." ... After pasting in and confirming your command via enter/return, you see the error messages. Afterwards wait about 1-2 minutes, without doing any input. Then the "#" appears I guess. Then it`s done. There is no confirmation about a successful install of ID7v2/autorun. Just prepare a FAT32 formatted usb stick, put any AIO tweak on it and try to install it after a reboot of the CMU/MZD. Thats how it should work. Fingers crossed for you.