After reading other reviews I wanted to write my own experience for anyone who wants to buy this head unit. I installed it on a 2008 A4 S-Line. First of all I really like it. It has great features and pretty much does what it says on the tin. It's a little slow to start, but it doesn't bother me. I find the rear camera works very well with fairly good color and clarity. I didn't connect the front camera but it should be the same as the rear one. I used a wired microphone and am very happy with the Bluetooth quality of the phone. I ended up hooking it up next to the speedometer and I don't think it's that noticeable. I hooked up the GPS antenna and found that the built in system worked quite well. I tried Google Maps briefly and it worked, but it was a bit slow to get started. Customer service was pretty good with the company. They responded to about 3 emails from me fairly quickly. Bluetooth music sound isn't perfect, but not a problem, at least for me. Screen mirroring from my s20 works very well. In fact, you can set the wallpaper to any image you like. I have a photo of my wife and me on it. You can also make a rather large Audi icon appear on the screen at startup. It's a nice touch. I had issues with the factory rear speakers and subwoofer. I tried the line out converter and still couldn't get it to work. My solution was to run new speaker wires from the main unit to the speakers in the rear doors. They connect to the green and purple wires coming from the main unit. Both rear speakers work. I couldn't get the factory subwoofer to work, even with new cables, but I won't beat the product because I might not have the cabling skills. Rschunimagu. I had to shave the top of the main unit a bit for the alarm button to work due to the tight fit. The FM radio doesn't seem to have good reception for me. I only have one station. I also connected the antenna cable. I'm not sure if it's a wiring issue or a problem with the main unit. I use the K-love App, Youtube and Spotify for my music. I have a problem: getting Torque Pro to connect via Bluetooth. Torque boots fine and installs on the head unit, but I can't figure out how to connect the head unit to my OBD 2 port. If you have a Wi-Fi OBD2 connection (not Bluetooth), it may work. If anyone has figured out how to connect Bluetooth or if Wi-Fi works I'd love to know. Overall I think this is a good upgrade for the price.
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