How to learn more about car sound systems: Use a car audio review!

This year I have added an additional week on the end on my Easter break. This will give me some added time to catch up on some things that need to be done around the house. I am also planning to take my wife away for a weekend getaway. I have also been considering upgrading the sound system in my current car. I would like to have the ability to plug in my IPOD to listen to some of the recorded sales material that I have accumulated. A friend suggested that I use a car audio review to see what is available on the market. He mentioned that it may not be necessary to get a new system because you can purchase adapters that can be used to integrate your IPOD into the existing setup.