2008 Mondeo LX - Car Audio Upgrade

[ajar]

Hi
I was thinking of upgrading my car audio as one of the stock speakers has blown and instead of buying another stock speaker I just wanna get some better custom ones in there. I was wondering what mounts I should get for the speakers, how I wire them up (should I use the stock cables and just splice from those or just run new cables), and I was also thinking of getting an amp for the front speakers so where should I mount that? I also want to replace the head unit so I bought a fascia plate for a double DIN from ebay:
http://www.ebay.com.au/itm/261550014...%3AMEBIDX%3AIT

And I was thinking about getting these speaker mounts too:
http://www.ebay.com.au/itm/160751342...%3AMEBIDX%3AIT

But the issue I think these will make is that there won't be enough room for the back of the speaker to fit, since on the stock one the speaker protrudes past the mounting bracket.
Thanks heaps for the help.