04 nissan titan, airbag light, peswix

hi all i have a guy with a nissan titan 04 with the factory deck that i replaced with a double din and molded it in to look bone factory, BUT 2 things i need help with all of the sudden the air bad light blinks in the dash by the speed gauge, i tried to reset it by unplugging the batt but nothing the second issue that im having is im installing the peswix unit to integrate the steering wheel controls to the new deck but on their site they say to tap the white wire on the unit into a pin #19 wire lol there is no plug with that many pins in it there are 2 plugs that came out of the back of the stock deck and got hooked up to the adapters and then the new deck harness so im way lost on where to tap that white wire into? whats a good location for mounting that remote led so that they are in good sight with the new deck for the remote signal? thank you in advance slawek boosted1@yahoo.com

the trim of the nissan titan is LE it does have a jbl sound system in it also where would you think to put the led for the signal?