road angel hardwiring in a mazda 2 sport

[evilfish5000]

Ive bought a road angel and want to hard wire it into the car. Im planning to do it from the cigerette lighter the problem Ive got is the wiring. I dont want wiring exposed in the car. The plan is to run the wire under the trim where the curtain airbags are. Problem is I dont know how to remove the trim and Im concerned if i do it might set the airbag off.

Can anyone instruct me on how to remove the trim, direct me to a website or suggest an alternative route to hard wire the road angel.