airbag installation help for newbie

I just bought a 4x4, 95 taco. apparently it had a collision but fixed up except still has the deployed airbag.

1_I bought a used air bag and an airbag sonlenoid. Now, how do I put it on without blowing it? If you have any steps please give your inputs.

2_Do I have to go to the stealership to plug in somekind of computer??? for reboot???

3-What do I do with the solenoid?

4-Do I have to check for the sensor or anything like that???


Thanks in advance

cheeko