So excuse my lack of speaker knowledge but is the XLT pre wired for all this and is there a factory amp or would I have to get an amp, enclosure/box , sub and wiring? I still have the stock deck but will be replacing it soon.
I just did this with my truck, and it wasn't too hard. I have a single 10" and it sounds great, much better than stock.
There are a few companies that make enclosures that fit where the factory sub would go. Two I know of are q-logic and MTX. I tracked down a MTX Thunderform enclosure on craigslist after looking for a month or so. You can purchase a box + sub for ~240 on ebay or just look for a good deal on a used one.
I then installed an amp under the rear passenger seat. Running wires from the head unit was not bad at all. There are little pieces of plastic trim that pop right off along the edge of the door on the bottom, and under there there is a channel to run the power and remote turn on/RCA cables. I ran the power cable on the drivers side and the other two on the passenger side. The cables ran to under the seat where I hooked up my amp. There also is a couple grounding points there too, so it is a nice spot.
I would recommend getting an aftermarket head unit with RCA outputs on the back. It will make it sound a lot better, and will work better (in my opinion).
To install the sub, you will have to remove the passenger side panel, but there are step-by-step directions in the owner's manual for it. It lists all of the tools and everything.
To get the manual go
Here and on the left hand side down a little bit there is a link that says download it.
If you have any other questions, I may be able to help you.
