GPSN Pro Micro Camera GPS Tracker Receiver For Nikon D800/D3200/DS90/DA7100/ D5200, D4/DF600/FD5100,D7000/DD300/S With From Goodgo, $84.49 | DHgate.Com
Yes, you can use 12V as input for a Nikon D3200 : r/Nikon
Marrex MX-G20M MKII Geotagger GPS for Nikon D3200, D3300, D5200, D5300, D5500, D7200, D750, D810, D610, D600, D500, DF, D5, D4, D4S, P7800 & More (New Version) - Walmart.com
GPS Receiver Module For Nikon Cameras, Geotagging Unit Compatible With D800, D800E, D610, D600, D7200, D700, D7100, D90, D3200, D5200, D4 From Goodgo, $100.34 | DHgate.Com
GPSN Pro Micro Camera GPS Tracker Receiver For Nikon D800/D3200/DS90/DA7100/ D5200, D4/DF600/FD5100,D7000/DD300/S With From Goodgo, $84.49 | DHgate.Com
Nikon D3200 - Photo Review
NIKON MC-35A GPS Adapter Cord for Digital Cameras | eBay
Nikon D3200 Gps Adapter
NIKON MC-35A GPS Adapter Cord for Digital Cameras | eBay
GPSN Pro Micro Camera GPS Tracker Receiver For Nikon D800/D3200/DS90/DA7100/ D5200, D4/DF600/FD5100,D7000/DD300/S With From Goodgo, $84.49 | DHgate.Com