I have an 06 without the tow package. Do I still have the wiring inside under the drivers dash for a brake controller? I'm thinking of getting a pop up camper and want to have all my ducks in a row.
-c

Depends and maybe are the key words
I've found most information here but the site is down just now.
http://www.jeepkj.com/forums/viewtopic.php?t=1691
You "might" have the blue wire "if" you have a EVIC.
If no EVIC then you'll most likely need both cables that are mentioned at the site I needed both cables on my 06 Limited. I recommend getting the Chrysler wiring because Jeep uses relays for some trailer functions to isolate the jeep from the trailer and the relays come with the trailer harness and are in the right rear quarter panel

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)

Here is the write up I used when I installed my brake controller, pretty good info there.

http://www.jeepkj.com/forum/showthread.php?t=26895&highlight=Draw-tite+hitch

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06' CRD Sport Dark Kaki
2.5" Daystar Lift
06' Moab Wheels
245/75R16 Goodyear MT/Rs
Factory Skids & Tow Hooks
Provent & SEGR

+1 with CRD Sport.

I didn't have the tow package but DO have the EVIC. I just bought hte MOPAR wiring harness and hooked up as described in the provided write up two years ago. Still going good.

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Ryan
2006 Ford F-250 PSD CC FX4
**GONE**
2005 Jeep Liberty CRD
SAMCO Hoses//GDE Tune//PML Trans Pan//TransGo HD Shift Kit//MBRP Exhaust

1986 2R Mustang SVO