This is one of the
Easiest Mods' that I have done so far.
I'll be giving you detailed steps with pics included to guide you to replace your OEM tails to Altezza smoked LED's that I purchased off of Ebay.
Models: 05-07' 300C and Srt ( I cannot veify if the other models will work).
Cost: $115-200( I purchased mine for $115 on Ebay)
Tools needed: Flat head screwdriver
Time: 20 mins-1hr ( Depending on your skill level, this is
very,very easy)!
STEP 1
Open the trunk and locate a plastic rivet and plastic knob that is located directly behind the tail light. Simply popped the ribet out with the flat head screwdriver and turn plastic knob with fingers counter-clockwise. I used the carpet in the trunk as leverage to remove the rivet, you can elect to use a flat head screwdriver if you want.
Plastic knob 
Rivet
STEP 2
Once the rivet and knob are both removed, pull back the carpet to exposed the back of the tail light.
You will then see this harness. You will first need to remove two more plastic knobs located
under the carpet and on the rear tail light assembly itself. These are easily removed with only the use of your fingers.
Dont attempt to undo the harness just yet.
STEP 3
After all three (3) plastic knobs are removed, slowly pull out the Tail light assembly from the body of the car. Once the 3 screws leave the holes, you can stop. The wire harness will still be connected to the OEM tail light.
