only company that comes to mind is AdvanceAutomotiveConcept.
I know they sell the CCFL rings, but not sure if they install them for you.
Be careful tho, there were stories over at LXforums that the ccfls could of caused potential fires.
2009 Jeep Grand Cherokee SRT Design
SRT Exterior,Magnaflow 14590 w/ SRT resonators,V2 CF Medic Hood,Injen Powerflow Intake,Flying Ryan Ported TB,Custom Painted Halo Headlights,HID lows/fogs,SRT Springs,Stillens,Gloss Black SRT Reps,Mopar Spoiler, Custom Painted Moldings with Snakeskin green
GC letterings, Mopar Stripe,Tinted LED
tails/rear fogs, TLS Harness,Switchbacks, Stage6
5" Tips,Custom Door Handle Leds,5% Tint,Altec Plate,HID Reverse,Mopar Front Emblem/ Rear Logo,Powerwire,Interior Leds,RGB LED cupholders,Mygig,Weathertech Mats,LXHarness Leds,Rear Cargo Light Mod,Lockpic V4,GlossBlack Vinyl Interior Pieces