The Legacy Car Audio LBP22 is 1200 watts.
The Kicker 1500 Watt subwoofer is very, loud, but doesn't have the best clarity and can get muddy. Consider Pioneer subs.
The Legacy lal 20's peak output is 120 watts(x 2) per channel.
The Kicker 08DS12L72 can pump out up to 1500 Watts, but you'll need a beefy receiver for that.
A 12 inch, 1500 watts enclosed car audio subwoofer.e.g kicker 08DS12L72 Dual
Buy a cheap Jensen amp the 250watt 1.
The Kicker enclosed 12 in. subwoofer can always be connected to your factory radio, and it should be very easy to do.
A subwoofer can vary in prices......it really depends on what kind of subwoofer you get including the number of watts it has.....
The Legacy Audio LCD75DFX can drain your battery in short order. It's best if you don't watch a whole movie without running your engine for at least 15 minutes.
Any amp capable of pushing up to 1500 Watts will do the trick, and shouldn't be too expensive to come across.
The Kicker 08DS12L72 will fit in your Jeep with no problem, but make sure it is covered or protected.
The Kicker 08DS12L72 will certainly fit in your Honda Accord, but older models may make it a tight fit.
You must first check with the guide to your subwoofer. Either you can probably find it online , but you need to know the RMS wattage for the subwoofer. Than buy an amp that can put out the same number of watts and the RMS is for the subwoofer.