If you remove the trims this will not trigger the air bags the hiden screw is behind the airbag symbol at the top of the a panel and b trim > Although one recomendation is that the wire should not be run in front of the airbag or simply tucked into the trim as during deployment this can cause harm or failure .If you are still worried dissconect the battery ensuring you have radio code wait 2minutes and touch the negative and postive battery leads together to discharge the systems note this is the two main leads being fully dissconected from the battery and if a second battery is fitted in the rear ie twin battery concept must also be off this ensures no residual voltageis left .A long way around I know and the need to reset 60% of your profiles when complete and some lamps may illuminate after on the dash but a short test drive should go out .One final comment do not reconnect battery till fully rebuilt
