Is there anyway to directly connect my iPhone or iPod to the wires of car speakers?

I'm doing a project for technology and I'm building a speaker dock, I bought a pair of these car speakers thinking I could just connect a few wires, but no. The speakers come with a wire from each is there anything I can do to connect them to an aux cord or speaker dock so that they will play? Please help I've spent 30 quid on these and I don't know how to set it up

Connecting them is easy, just take a cheap set of earbuds, cut off the part that goes into your ear, and connect the wires to the speakers.

The problem with this approach, is the lack of power. Most docking stations also include an amplifier, which you will probably also have to buy, if you're going to make this work.

If you want good results, you'll need to add an amplifier to the system. Something like this might be suitable:

http://www.amazon.co.uk/...00409KVDS/