I just bought a 2007 H2 with navigation and a 6 cd changer.I know this is dumb but where do you insert the 6 cds.

 

I know that info is in the owners manual.
I believe you just insert each disc into the one and only slot in the radio unit.

 

that is correct...press the load button and wait till it tells you to insert a disc...keep pressing the button for each disc, until it's full....then you press the eject button and hit the number of the disc you want to remove....hope that helps.