Sound System for single cab truck?

I'm getting a 2007 Ford F-150 single cab, and i'm looking for a system to put in it, i don't know much abut them because it will be the first system i actually get, i was wondering what subs, amps, kickers, any of that that i would need to get? I love bass, but i also want some good quality sound. I need to know what brand to get? What sizes, and everything, what housing box to fit my truck? Everything would be greatly appreciated. And for a decent price as well.

P.S. The truck doesn't have the stock radio, its an aftermarket, but havnt looked into what brand or anything. If that helps any? Everything would be greatly appreciated and thank you.

I recommend JL Audio. They make great subs and have great sound quality. Go with the TW3 or TW5v2, they're shallow mount which means they're thin. The TW3 has 10" and 12" size. The TW5v2 has 13.5". The TW3s are cheaper. If you get these get the JX500/1 amp. It would be perfect. Go to the site jlaudio.com and click mobile audio then click subwoofer drivers and click on one of those series or both and go to specifications and it shows you all the specs you need to make a box for the certain subwoofer. You can look at the amp up there too. Just click mobile audio and the amplifier tab comes up. And its better to have an aftermarket radio in my opinion. The price is a bit steep just a tad but you can't go cheap with car audio. The price isn't that bad really. For those certain subs