I found two blitzsafe ipod adapters that looks almost the same. The only difference i can see is a "D" at the end of the name, and $20.00. Does anybody have an idea what, if any, the difference is? Here are the links

http://enfigcarstereo.com/shopsite_s..._MLINK1_1.html

http://enfigcarstereo.com/shopsite_s...MLINK1_1D.html

 

I think the only difference is "+ Alpine M-bus CD changer interface"

 

Does that mean it has the special connector that lets you access the ipod through a alpine head unit?