So i feel the need to feel more of the bass in my truck, the stocks work great but i really wanna feel it.
So do i need anything besides the speaker im looking for 15in squared speakers and ill prolly need an amp but do i need to change the stock dash system or can i use that any help please its a nice truck too so i dont feel like messing it up any help on professional installers
again any good advice would be appreciated and thanks in advance
Sorry Mr. Big, missed this question.

Must of been out pounding on the Hammer Lane, Have you though of running two 10 inch banpass box or two 12 inch Banpass box??? If it's bass your looking for, make a pair of banpass box to give you the bass your looking for.
A true bandpass enclosure has one good charachteristic, one bad charachteristic, and one that could go eiter way.
The good is that the bandpass design is much louder than either a sealed or ported box.
The bad is that the bandpass box only works for a certain 'band' of frequency and anything outside of that band is hushed.
The iffy thing is that the bandpass box design typically hides distortion. Distortion is that horrible sound that speakers make when they have too much volume going to them and that sound is not typically within the band that the enclosure is tuned for. This is good because you don't have to hear it, always sounds clean. This is bad because you don't know when your subs are screaming for mercy and you are more likely to let them destroy themselves.
Bandpass boxes are extremely difficult to design. There is no such thing as a 'standard' bandpass box, they are very specific for the exact speaker that is going in it. Putting two high-dollar 12" JL subs in a 'off the shelf' bandpass box will not sound near as good as a single 10" in a proper bandpass box.
Just to give you an idea of what a bandpass box is capable of... Imagine a two single 10" Fosgate sub in a single bandpass box (.75'^3 sealed, 1.4'^3 vented, just about 2.2'^3 total) with 100 watts of Orion power in a Jimmy. DJ Magic Molson made a quarter jump almost two feet off the top of the Jimmy, you could actually watch the top of the vehicle flop up and down...standing beside the open driver door let you observe the girls skirt ruffle (wife hates that).
They are awesome when done correctly and embarassing when done incorrectly, and the bandpass enclosure is not worth it unless you have good tuned speaker components. Unless you have already spoken to Fosgate or who ever is the speaker maker is and had them give you bandpass specs you want, you should not try this. You'll spend an inordinate amount of time and end up with something that doesn't work well at all.
A well designed bandpass box can make a cheap driver slam like you wouldn't imagine...be they are not worth it unless you have the skills to design them properly. I had a pair of 15 inch Banpass in the back of the Jimmy and it was Louder out side in front to the truck then inside, (kinds miss those but now running the two 10 inch Fosgate for more room in the back to carry). I have the 15's inside the house running with the home stereo now, good thing next door is old and can't hear them. But she swears there's and earth quake ever so often.
Here is a link for you to get started and everyone else who may be interested in a summer project. Good luck and fee free to post for any questions on how to kill the speakers, been there more then once.
http://www.ajdesigner.com/speaker/index.php