[Sienile]

The orange tab needs to be pulled up and then the connector should wiggle free. The orange piece is a lock tab. It should only raise a little bit, don't try to pull it all the way out.

 

[Sienile]

Either should work. Go for the center inline with the connector, the arms that work it are on the sides. Small flathead screwdrivers are the best thing to do it with.

 

[Sienile]

Yeah, no one really messes with airbags in the aftermarket. Used parts dealers don't like to mess with them much either. Dealer, a U-Pull-It, Pick-A-Part, Pull-A-Part type junkyard; or a repair are probably your only options.

Since you have it off now, you can take the harness to a shop and see if you can get it repaired. Automotive shops are your best bet, but electronics or appliance repair shops might also be willing to do it. For a proper repair it will need to be soldered and heatshrinked. Make sure that's what they will do. Butt connectors and wire crimps are unacceptable for airbag wiring repairs.