Light comfort package
 

I just traded in my 06 Cayenne for an 08 Cayenne S and I just realized that the Light Comfort package wasn't included. We now have to turn the Bi-Xenons on and off every night. Does anyone know if it's possible to do a retro-fit for this feature? My dealer is looking into it, but I wanted to see if anyone else has tried retrofitting a package that wasn't available upon delivery.