2GB+32GB CAMECHO 9" Android 11 Car Stereo with Wireless Apple Carplay Android Auto for Audi A4 S4 RS4 Touch Screen Car Radio with GPS Sat Nav HiFi Bluetooth FM RDS Radio Head Unit with Reverse Camera

Although the Head Unit was quite cheap, it is not bad and does most things it should, but the Tech Support was a total disaster, most questions were answered incorrectly and when I mentioned that the Bluetooth was reported as only 2.x/3.x and not 4.1 as declared in the specs, they stopped responding completely !It also says it is Android 13 which clearly it can't be, probably more like v8, but everything I currently need it to do it does and I'd need to spend a lot more (>£150) to only get a few extras.So although TS said you can't connect more than 2 USB devices, with a suitable USB Hub I have got 4 devices connected. The Wi-Fi & BT antennas are just short lengths of wire, so my iPhone needs to be within say 500mm to connect. Connecting to my home wi-fi was also very hit & miss, but I have a 4G USB Dongle in the glove box and that works fine. The wireless Carplay works great and Waze loads faster on my iPhone than it does natively on the HU.However, it has been very difficult to get Apps and things to operate correctly as the manual is rather basic and without a competent Tech Support any first timers don't stand a chance...