Reddit mentions of USB GPS Receiver Antenna Gmouse for Laptop PC Car Marine Navigation

You can use 3M double-sided tape or Velcro strips to stick this type of device on your tablet:
https://www.amazon.com/Receiver-Antenna-Gmouse-Laptop-Navigation/dp/B073P3Y48Q


Typically they work better when separated from the metal chassis of the tablet though, so I would not permanently attaching it.

I've done this. It's not trivial, but it's also not all that difficult, either. I'm going to assume that you want a live view of the device (meaning you'd be able to view where the car currently is located, and track it in near-real-time), not a data logged view (meaning you'd drive around, offload the data later, then view it).

This is going to be a very high-level overview; you will likely require some kind of coding and database experience, along with familiarity with the Google Maps JavaScript API. It would simply be beyond the scope of this sub (and my willingness) to post every line of code and every step of setting things up.

First, the equipment you'll need for the Pi:

• A working pi, obviously, with OS installed and configured
  
• A USB GPS receiver (like this one)
  
• A USB 2G/3G/4G dongle (like this one, with associated SIM card (if applicable) and airtime
  
  First, you need to get the Pi communicating on the mobile network with the 2G/3G/4G aircard. You can follow the instructions here, but realize that tutorial references a specific 3G breakout board for the Pi. You're welcome to use that instead of the 3G one I linked above.
  
  Once you have the Pi communicating on the mobile network, you need to get the GPS receiver working. You can follow a tutorial for that here, realizing again that this tutorial references a Pi-specific GPS receiver, but should work with the USB one I linked above.
  
  Once you have those two things, you'll need to set up some kind of server somewhere to receive the data from the Pi (I used a standard LAMP setup: Linux, Apache, mySQL, php). A simple home-based server accessible over the internet, or perhaps an Azure or Google Cloud VM would work. In my solution, I simply did this:
  
  
• On the Pi, write a script that, on a timed interval (30 secs or so, adjust to your liking), requested GPS data from the USB GPS device, parsed it, then sent that info over the 3G network to the server. The server would then take that data, parse it out again, and insert it into a database (mySQL for simplicity).
  
  
• Then, I created a web page on the server that overlaid this GPS data from the mySQL database on top of a Google Map. I wrote it such that it would automatically update the GPS data on the map on a timed interval, so I could load the page and watch the slowest game of reverse-Pac-Man ever, so to speak.
  
  
• Then, I configured the Pi to execute any scripts, GPS daemons, and 3G connectivity processes on boot, so that I could simply power up the Pi headless (using a USB battery pack, like this, for portability) and start tracking immediately.
  
  Like I said, it's a straightforward list of steps to take, but requires some coding and database knowledge in order to completely pull together all the pieces. There might be "plug-and-play" solutions available (I did this back with the original Pi B, so some years ago), but I did it all custom just as a proof-of-concept.
  
  I work closely with telemetrics and GPS tracking as my profession, and honestly, unless you're looking to hone your skills or have a hobby/pet project, there are off-the-shelf solutions that would get you up and running with vehicle/personnel tracking much, much quicker and easier.