Adding Multiple Google Calendars via CalDAV to iPhone

I've got 5 calendars that are synced with my Macbook to my Google Calendar. I would like to add these calendars on my iPhone via Google Calendar in the hopes that I can just change/add events on my iPhone and it will sync with Google Calendars (which will then sync with my Macbook via the Busysync program).

Since I've already got a Microsoft Exchange account from work on my phone, I have to do this through CalDAV. I understand how to set up my default Google calendar on my iPhone through CalDAV, but I can't figure out how to get my other calendars from Google Calendar on my iPhone.

I'm not sure whether to use the XML, ICAL, or HTML URL for the individual calendars and where on the iPhone settings does this URL go to. Anyone with step-by-step instructions on how to do this (or if this is even possible)?

 

Thanks. That link answered and solved my question.