This is a gauge pod to install an Aeroforce Interceptor engine gauge on the steering column of a 2009-2016 Audi A4 or S4, chassis type B8 or B8.5. It installs onto your existing steering column trim. Full installation instructions are on the Audizine site at:
https://www.audizine.com/forum/showthread.php/910978-New-product-Steering-Column-Gauge-Pod-for-Aeroforce-Interceptor
The gauge is available for order at
https://www.aeroforcetech.com/products_order_audi_vw.html I have no affiliaton with Aeroforce, other than being a customer.