Hi, I'm looking for some opinions on the DICE Ipod integration vs. the iSupply model by Peripheral Electronics.. Both seem to claim to do pretty much the same things such as charging the Ipod, having a readout on the radio, steering wheel controls, etc.... Any pros and cons to either model. Also, my '99 328 doesn't have a cd changer or the hookups for one in the trunk. Can these models still be installed directly to the factory radio ?? thanks.