can bus

Hi everyone... reaching out because I'm a beginner in car audio and need some help understanding how to correctly mount my new radio. I have a Fiat Punto Sound (2006) that came with a Blaupunkt MP3/CD radio and, because it broke, I've decided to buy and mount a Sony dsx-a210ui. Everything was...

I have just had a Sony head unit (model # MEX-BT3900U) installed in my Audi S4 Cabriolet (2006). The installer said that in order for the steering wheel controls to work, I need a Dietz CAN BUS adapter for Sony. The one he gave me as an example is a Tyco Alpine adapter (item # 3-957419-1)...