I didn't mean the depth Niel, but actually the diameter. The 6.5" diameter speakers take up nearly all the available space left behind after removal of the storage boxes dont they - surely anything like a 10" sub would therefore have to sit proud?
I'm in two minds as to whether I should change my simple 6.5" component install to 6.5" subs. Some of my main reasons not to, is the hassle of building an enclouse, being worried about buzzes & rattles, and actually that very punchy mid bass getting quite annoying/tiring after a while..