A4 audio upgrade
 

Hello, thanks for letting me join. This is my first audi. Question I have is what options are available to up date stereo. I have a 16' a4 quattro 2.0t, no navigation either. I'd like to get something touchscreen if possible. Thanks in advance.

Alpine makes a head unit that integrates with the car's systems for the B8/8.5 Audi A4. There are three different versions of the unit designated X701D-A4, X702D-A4, and X703D-A4. They tend to run around $1600 or so and are only available from dealers in Europe, but they fit nicely into US versions. The main differences are that they don't have AM radio but have a DAB tuner instead. It also comes with an integral navigation system and works with the steering wheel controls. You'll find dealers that sell them on ebay.

Another option is one of the RSNAV units. Here's a link to their website:

https://rsnav.com/

There are lots of threads that discuss these units over at the Audizine forums. There's a dedicated subforum that discusses audio system upgrades. Christian at Enfig Car Stereo is the sponsor and is very knowledgeable in Audi sound system upgrades.