camera UConnect 8.4 upgrade, GPS, camera, specs

[ahpitre]

I just bought a Dodge Journey SXT 2014.

1. Can the UConnect 8.4 (not sure the model A, etc., it doesn't have GPS) be upgraded with GPS?
2. Has anyone installed the backup camera (the original one sold by Dodge dealers)? If so, how difficult it is? Would installing the camera myself void the warranty? Went to the dealer and the charge $320 for the camera (not bad), but $468 for the installation (wow, way too much). Thinking about doing it myself.
3. What is the size limit of an external HDD (Hard Disk drive), and what format should it use (NTFS, FAT32, etc.)?
4. What about the USB drives and SD Cards, what are the maximum specs allowed (size, format (FAT32, extFAT, etc.)?

On Ebay, I saw a kit, with an addon module (small box), and a connector that is supposed to be added to the radio and it will then have GPS. Price was ridiculous, $1300, while the actual radio (UConnect 8.4 AN) with the built-in navigation costs $1200).

Any ideas, suggestions, or advice are welcomed. Thanks, and blessings to all.

[Darkpaw]

Don't know about a Journey, but in the Charger (I assume it would be the same) it requires an upgrade to the source unit in the dash and you need to upgrade your antenna, to get NAV. Most people would probably find it cheaper to do an after-market layout.

The backup camera has a lot of labor on the Journey because you pretty much have to gut the interior to do it. The seats and carpet have to come up, and a good portion of the paneling. It's a multi-hour job.

[20blacktop14]

I just bought a 2014 journey blacktop edition and the dealer upgrade the software for 499.99. The GPS antenna was installed from the factory. it took about 45 min to get done and the reason it took that long was bc they had to get a 22 digit code to enter in from chrysler.