How to hook up an iPhone to car speakers (No car stereo)?

[milo]

I am converting a 1955 Triumph TR3 and would like to install speakers to play music from my iPhone. The car currently has no stereo, speakers, or wiring for anything of the sort.I don't want to install a radio because I wouldn't listen to the radio at all. What is the easiest way to hook up an iPhone to the speakers I will install? If the easiest way is to use a radio as an amplifier, so be it. Any links for additional help would be appreciated.
Thank you

 

[Hunter]

You will need an amp that has rca jacks. You will hook the amp up and instead of plugging the rca jacks in from the radio, plug the thing in the link in.....
Walmart sells them. Get a equalizer music app if it doesn't sound good.