The Kicker 08DS12L72 can pump out up to 1500 Watts, but you'll need a beefy receiver for that.
The Kicker 1500 Watt subwoofer is very, loud, but doesn't have the best clarity and can get muddy. Consider Pioneer subs.
The Kicker enclosed 12 in. subwoofer can always be connected to your factory radio, and it should be very easy to do.
The Kicker 08DS12L72 will fit in your Jeep with no problem, but make sure it is covered or protected.
A 12 inch, 1500 watts enclosed car audio subwoofer.e.g kicker 08DS12L72 Dual
kicker
Kicker is a much better quality subwoofer than Pyle, and it will have much better bass as well.
The Kicker 08DS12L72 will certainly fit in your Honda Accord, but older models may make it a tight fit.
The Kicker CVR subwoofer comes in sizes such as 10", 12" and 15". You can purchase these subwoofers online from the official Kicker website online store.
One can purchase a Kicker subwoofer at many electronics retail stores such as Best Buy, Future Shop and Visions Electronic. One can also buy them at online shopping sites.
300
Any amp capable of pushing up to 1500 Watts will do the trick, and shouldn't be too expensive to come across.