Not sure if this will be answered either, but I will send this out and continute to disect the documentation and source code.
 
  I am building a couple of configitem service class related items.  For arguments sake, we will say CAR and stereo are two new items.  I want to be able to tie the stero to the car, but am clueless on how to cross the 2 definitions correctly, any help would be appreciated.
 
 Joshua McDowell