Re: LED Question
what year is your Jeep? IIRC those headlights in your link are PnP for 05-06. For 07+ you need some wiring or a wiring harness from Lips to make them work properly. For the reverse and license plates, you are good to go, no resistors needed.
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