I'm in MyGig hell right now. After a lot of patience I was able to find a unit out of an 09 Ram for $900 shipped with the GPS antenna. Dont waste your money on anything older, the Ipod integration on 09+ is the best. Bought the Ipod harness from a member here for $100, then the Lockpick with audio/visual harness for $200 from ebay (look for mrcd1). Picked up my rear view camera from tvandnav2go.com for $100.
Everything works great except I still haven't been successful getting the right mic setup.
First attempt: Bought a harness to connect a dual microphone and dimming power mirror from a dodge Nitro. Bought the harness from MrCD1 for $120. However, I put the cart before the horse and was not able to find the mirror I need for less than $350. So scratched that idea. Not worth it.
Second attempt: Bought the mic and a pillar piece for the 2010's. Then to find out that the mic's cord is about 4 ft short of reaching the radio and the connectors don't match, so I cant just solder some extensions on.
After talking with my local parts guy, he sold me a harness that connects the mic to the OEM Vehicle BUS harness ($8). However after I recieved the harness, it too is way too short. Apparently Jeep includes an extension from their original factory harness that extends to the driver's side of the dash. Well I have an '09, so its not there.
So now I am limited to buying a different mic that plugs into the middle 10pin slot on the radio. Which in my case goes into the Ipod harness, that piggybacks that slot. Found two options this evening. One from coastaltech for $20, or the MOPAR "MyGig Navigation Radio Microphone kit."
That should get the uConnect and Voice Commands setup.
I'm still really happy with my choice on using the MyGig over the Kenwood option I was going to get. Just bugs me I haven't got it completely done.
Down the road I plan to hook up the Rear Seat Entertainment (VES) portion of the MyGig. I really don't like the idea of having monitors in the headrests, too much attention so I would like to go with a monitor that I can put in only when I need it.
Trouble is finding useful information from various forums that information is scattered across. Listening to speculation and wrong info has cost me a couple hundred bucks. When adding these things, MOPAR or aftermarket, you're totally on your own. Lots of dead ends and "not sure" answers. The MyGig forums are not really up to date and mostly just answers to the basics are there. Also, there isn't really anything out there to tell you what 2007-2011 have behind the dash and their differences.
The meat and potatoes of the MyGig are plug and play. Initial setup is very easy, takes 10 minutes. The really good features that set it apart are a little more difficult.
When I get settled on a mic setup, I will start a writeup to my current progress and update as I go. It will save some people a lot of time and money by avoiding my mistakes.
Specific to your questions:
Is there anything I need to know about installing a mygig unit?
-- The basics are easy to figure out. Youll need the unit a sat antenna if you dont already have one and the GPS antenna.
Do I need to go to the dealer and have anything flashed?
-- Depends on what you get the unit from. If it is from a model that already has features unlocked, no. If they aren't showing up, then yes.
Any downsides to installing one?
-- Nope, other than getting the right parts for what your trying to accomplish
How do I figure out if I need a high or low speed?
-- All wranglers are high speed. Other models vary by year, so be sure of what your buying.
Are there any better options for the same money?
-- Yes and no. The Kenwood unit I wanted was big $$, there's a lot of options. The infinity speakers are plenty for me, so I didn't want to get into amps resistors, capacitors, new speakers, etc.