I purchased my Jeep through the Chrysler Affiliate Rewards Program at 1% below factory invoice with no haggling at all.
If you don't have access to the Affiliate Rewards Program through your employer, you can join Tread Lightly Membership link for $100 to receive a Company Code.
You then go to Chrysler Affiliate Rewards site where you will use the Tread Lightly Company Code to get a Control Number. You then take that Control Number to any participating, Chrysler, Jeep, Ram, Dodge, SRT or FIAT dealership and receive the 1% off of the factory invoice, no questions asked.
That's how I purchased my 2012 Jeep Wrangler Unlimited Rubicon :B