If i'm not mistaken they are for the sunroof. I have a limited and I have a sunglass holder, buisness card holder, 2 lights, sunroof slide button and sunroof tilt button. That is probally what they are for. hope this helps you!

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2007 Limited CrewMax 4x2
i-Force 5.7 V8
Sequential shift (console)
Red Rock Interior
22" Panther Rims
285/45 Nitto Tires
FlowMaster 40 Series Exhaust
Rockford Fosgate 800W
4- Focal Door Speakers
10 Inch Sony Flip Down DVD
Billet Grill Insert
Chrome Hood Accent
Billet Bumper Inserts
Stubbie Billet Antenna
Xenon Conversion Kit (Hi's and Low's)
Silverstar Fog Lights
Silverstar Park Lights and Turn Signals
Billet Gas & Brake Pedals
Blue Interior LED's
Blue LED's Underneath
Rainguard Vent Visors Smoke
Chrome Third Brake Light with TRD logo
Chrome Door Handles & Tailgate handle
Chrome Side Mirrors
Chrome Oval Step Tubes