So how about this Pioneer d8604 and run the front component speakers on 2 channels then bridge the other 2 to power the pioneer shallow mount sub that is 200 rms?

http://www.amazon.com/gp/aw/d/B00E1BRITU

That's what I run in my Z. Works great and fits under the seat; although I moved it to the space between the package shelf and spare.

I have no first hand knowledge on this amp, but it strikes me as odd that theyy have the freq response listed as starting at 40hz ???? misprint?? Wheres the sub-bass
Edit......Nevermind, pioneer has it listed at 10hz on their site.

OP I'd advise if our going to amp your polk db's that you upgrade to a higher end set or speakers. The polk db's are good but for amping power you will want something a little beefier.

Do yall think the alpine spr- 60c is a better choice? What would be needed to make these fit? A spacer?

Sense they are in the same price bracket and compared to about the same as the db's I would say no. You would be better off with the alpine type r's or the polk dxi or mm's.

So I began the install tonight. I have some questions that I need help with.

1) the fitting on the driver side door is being a bitch connecting the harness where I drilled the holes to get the speaker wire through the door. Any suggestions?

2) on my pioneer 4600bt I have the option to hook the rca's to either a set of front speaker, rear speaker, or sub out outputs. Which would i use if i am using 2 channels on the amp for door speakers and the third channel to power a sub?

Not sure about your harness issue other than to say take a break, and go back after it fresh. As far as your rca connections, you can use either front or rear for components, makes no difference.. Run them to channel A inputs on your amp. Use sub outs for Subwoofer, run them to channel B inputs on amp.

Good advice. I called it a night around 2 this morning and hit it again a few hours ago. the driver side connector was a huge pain but the passenger side went a lot smoother.

Right now it's all pretty much wired up, I bought some plastic to make the tweeter bracket with so I am waiting on a buddy to bring his dremel over to cut it and it looks like i have to use the big ring bracket that came with my polk woofers but they didnt give me any screws so i have to pick some up later tonight.

Im running Alpine components, Alpine amp, Custom box in rear with two JBL's and two 8" subs.

Go with the components first with a good amp. Then go from there

I already bought a sub, components, and amp.

Got everything hooked up, hooked up the battery and popped both fuses on the amp.

oh no. go over that wiring again. hope nothing was damaged.

Well the amp fuses popped as soon as I connected the battery. I have a feeling it is my ground so I'm going to relocate it.

So what do you guys think? I have now blown the 2 30amp fuses on the amp 2 times now. Both pop immediately when I hook the battery back up. I have a 80 amp fuse on the main power line(what is recommended by pioneer). I have checked the ground and power wire over and over, and it is all intact. I put the amp behind the driver seat so there is nothing for the amp to touch and ground itself with(it is sitting on carpet. I am starting to think there is an issue with the amp. What else is there to check for?