The sound deadening looks great.
When I installed my rear speakers the factory cable was rusted and covered in a nasty white gunk, no idea what it was.
My only issue is that I can't go above 50% volume without it sounding crappy. I'm an amateur at this and it was all done by myself, but I'm at a loss.
Here's the system...
Stereo: http://www.amazon.co.uk/gp/product/B00N80CBXI
Front: http://www.amazon.co.uk/gp/product/B009PJZAHK
Rear: http://www.amazon.co.uk/gp/product/B006NU54M0
One thing it could be is the crossover thing, I left it out because I couldn't work it out...