Hello community, I would like to exchange the shaker 500 in my 2009 Mustang for a Kenwood DDX4018DAB (2 Din Radio). I ordered the aperture, including the adapter cable. Now see in this Do It Yourself tutorial that an additional 12V/5V voltage converter is needed?? Is this true?https://www.autoextrem.de/…/ Maybe someone has already done the conversion and can say if it is right. Some say so, others so.. Greeting Tim