Here are 3 Diagrams of how people connect their MP3 players and some pros and cons (IMH0)
1. Connects2 box
Pros:
Cheap
Works with any device that has a line out
Cons:
No power to the device
Civic EX owner will require the Y splitter from Honda at £91
Does not send any MP3 information to the headunit
Price:
About £35
2. DICE Electronics Box
Pros:
Charges iPod
Has Aux input for another device and auto switches
Comes with the Y splitter cable for Civic EX which is £91 from Honda
Cons:
Only available in the US (can be bought via ebay)
Does not send any MP3 information to the headunit
Price: About £95 (+ any import duty)
Finally a possible iPodTouch solution
3. DICE Electronics Box + Xtrememac RoadShow Car Audio/Video Cable for iPod
Pros:
Charges iPod
Has Aux input for another device (auto switches)
Comes with the Y splitter cable for Civic EX which is £91 from Honda
Video input to the LCD screen

(you will also need to do the reverse mod)
Cons:
Only available in the US (can be bought via ebay)
Does not send any MP3 information to the headunit
You have to make your own video in cable (or ask me nicely and I'll make you one for a small fee!)
Price:
About £95 for the DICE box (+ any import duty)
£20 for the Xtrememac RoadShow Car Audio/Video Cable for iPod connector
(actually you could do this wiht the Connects2 box, so it would be cheaper!)
