I bought this Android 9.1 stereo on eBay. The seller sent me the wrong one and won't return it. I wanted an am radio and Android 8.1 but this one doesn't come with it. Anyways. I went to install the steering wheel controls for a BMW through the settings but I get "Using a local file to upgrade:/mnt/udiskh/canupdate/can_app.iap Does not exist". It came with a BMW canbus box. Does anyone have that file or know where to get it? I emailed Seicane and they never got back to me. There is so many problems with this unit. Ugh. The reverse camera doesn't shut off. No steering wheel controls. No AM radio.