No that would neither be a good
Idea or possible
Take the rcas from the amp and connect it to the + and - posts on one of your speakers.
All car speakers will go well with a 500 Watt amp, but for the best effect, get a power subwoofer.
depends on the wiring check out Subwoofer Wiring Diagrams
Most computer speakers with subwoofer have the power going directly to it, so it is needed to get an extension for all the other speakers.
It depends on the power rating of the subwoofer.
An amp can only put out so much power without distortion. A speaker, say, a subwoofer, will utilize whatever the amp is able to put out. So the question is not will a speaker fry an amp, but whether the amp will blow the speaker. (Not, in your example) Any speaker, though, needs a certain amount of power to begin to drive it to listenable levels. High-efficiency speakers like bass-reflex speakers need only 5 or 10 watts for loud levels, while a low-efficiency speaker may not even make a squeek until they are fed with 10 to 15 watts of power. sO will this set up work or not?
12 inch Bose speakers are what you want, along with a amp and subwoofer.
If it is a subwoofer amp then set it at about 80 hz.
in fact , some subwoofer with amp. you don't need buy amp. give you one good guide http://www.12vcity.com
No, a powered subwoofer cannot directly power passive speakers because passive speakers require an external amplifier to drive them. A powered subwoofer has its own built-in amplifier designed specifically for low-frequency sounds, while passive speakers need a separate amplifier to provide the necessary power. If you want to use passive speakers, you'll need an appropriate amplifier that matches their specifications.
With Subwoofers only, you would want to go with only a 1 channel or 2 channel amp, 5 channel amps are designed to power 4 smaller speakers, and 1 subwoofer. Each channel basically refers to a different speaker - if you're using 2 regular left and right Speakers (not Subwoofers), use 2 channel setting, if you have 4 Speakers plus a subwoofer, use 5 channel setting. Make sure subwoofer is tested with the lowest gain/volume.
Sounds like a blown subwoofer.