I'm sure the '14 JK doesn't have a steering lock, but I'd just go out and crank the steering wheel lock to lock with the engine off to be sure.
According to the CooltechLLC.com website, the wiring harness is good to go through the 2015 model.
I personally don't believe in extended warranties. Why do they try and sell them so hard? I figure it's a big money maker for the warranty seller, and I believe most folks get no benefit. JMHO.
The Road To Paradise Is NOT Paved!
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Brian Hoag
www.rv-camping.org'10 Sunseeker Class C - Gozer
II'13 Jeep JKU (Wrangler) - Billie