I was missing the option to play my own music using a iPod Classic interface, so decided to convert my HU-801 Volvo headunit to my trusty Pioneer 1DIN / Single DIN using a fascia plate and some converter cables.

I like the original look better, but the functionality of the Pioneer outweighs the look a couple of times, which makes it a no-brainer for me.

Volvo S80 2.4T 1 Din fascia with ISO cabling

Volvo S80 2.4T Work in progress...

Volvo S80 2.4T 1 DIN fascia with pioneer headunit