I got one of these: http://cgi.ebay.com/HONDA-ACCORD-20...ltDomain_0&hash=item415158155c#ht_6029wt_1139
and it works perfectly.
It charges the ipod and has an aux in as well (if you want to use a non-ipod).
Also, the aux in turns my iPhone 4 into a speaker phone by using the speakers, though it isn't perfect (there is some echo).
I figured at that price, it was worth a shot. Installation was pretty simple (about 20 minutes)....
The Dice Silverline is a great product. I have had mine installed for the past 3 years with no problems at all. The USAspec has a history of failures, static noise, and dip switch settings that don't always work....which have all been documented here. But people still seem to like it.