Hi Guys maybe you can answer this question for me. I know the D3 has a smaller screen than the Z1 but is the physical size of the D3 smaller than the Z1? Will it fit in a standard Double Din openning, or do i need like a frame cover thing that will close out the gaps?

Thanks.

It's the same size - double din. It comes with a frame cover if there is a gap for some reason - I didn't need to use it.

It is a standard size double din. The reason for the smaller screen is that they opted for a rotary volume nob, which takes up a lot of valuable space. Another reason is that the unit screen does not fold out so more value screen real estate is taken up by having the slot loader in front.