I believe you'll still need a 3.5 mm male/male cable to connect to the E aux jack - even with the Belkin unit.
I also believe that the Belkin has an audio out jack on the base that you plug into the 12volt adapter in the dash so you don't have to run a second wire all the way to the iPod.
And yes, there are white cable avaliable at the URL below. Too bad you can't get like a six inch one. That would be perfect to go from the 12v plug over to the aux jack in the E.
http://www.xtrememac.com/formac/audio_cables.shtml
I also believe that the Belkin has an audio out jack on the base that you plug into the 12volt adapter in the dash so you don't have to run a second wire all the way to the iPod.
And yes, there are white cable avaliable at the URL below. Too bad you can't get like a six inch one. That would be perfect to go from the 12v plug over to the aux jack in the E.
http://www.xtrememac.com/formac/audio_cables.shtml