How do I add another set of speakers to my car?

Would I be able to set up these motorcycle speakers in my car?

• http://www.amazon.com/SHKCYCLEKIT-motorcycle-snowmobile-speakers-brackets/dp/B00172XRZA/ref=sr_1_11?s=electronics&ie=UTF8&qid=1332316458&sr=1-11 My car speakers are busted, don't know what's wrong, don't want to have to pay to figure it out. It's a 1990 Lincoln Towncar. I just want to have some small speakers that aren't powered by batteries. And if this is not possible to do, if anybody knows of some speakers that aren't motorcycle speakers that could be powered by the cigarette lighter in the car and could point me in the right direction that'd be great.

• Answer:

  If you don't know what's wrong with your speakers, how do you know they are busted. I once bought a whole new stereo and found a worn through speaker earth wire when I pulled the old one out. If there's no sound coming through your speakers, it's more likely to be a loose wire than the speakers. If you just want a cheap way to get ipod connectivity in your car, this set up looks great. Think I'll get them for my bike.