Sterio Confusion

[69halfton]

I bought all New system from Canadian Tire...
im not really into alot of sound (my favorite sound is a 383 stroker wide open, but thats another topic in its self..)
i dont know much about placement or anything else...
my truck is a radio delete truck, and i dont want to do any hacking if i can help it. I have somewhat of a plan, and that is to build a center console in shop class, out of wood, and stain it to match the wood in my bed. this would give me the 1 cu. ft i need for the sub.

now the qestions:

is mounting the Deck (head unit ) as part of that subwoofer console a bad idea?

also, all i have is two 4"x4" pioneer tweets/mids, will the woofer drown those out?

the sub is a 500 watt max, and the 4x4s are 160 watt max,
how much amp should i buy?

any comments would be appreciated.