You probably found the answer but I 'd like to tell you that parts that allow you to upgrade your system (mini PCI-e slots, SIM slots, antenna/antenna's cables) are not included if the extra functions were not ordered. My not-3G mini 9 had no SIM slot, antenna/antenna's cables or mini PCI-e slot(before I solder one). My no-TV 1010 had stuck the BIOS-battery on the TV's mini PCI-e slot place on the motherboard(before...). I wouldn't cut any part ...of me to tell that a no-WWAN 1010 has not a SIM slot, but I 'm sure it doesn't.
GPS is in the Dell 5530(more correct Ericsson f3507g) WWAN modem. In my case I had to put an old, not working SIM to have the GPS enabled (before I get 3G connection and a "live" SIM), perhaps there are other ways.