In your first video you have a code 32 airbag light which means damaged clockspring. With your truck you may also need to replace the RCM as once the airbags go, they are not reusable. Fords had them tied to the VIN, I'm unsure about Mazda. On the pass. side, did they put in a new airbag or a plate from an earlier truck? It would say airbag on it if it was one.

As for the door ding when the drivers door is open and the key is in the ignition, that is normal.

I only made it halfway through your first video so if you address any of these later I have not yet seen that. Sub'd!

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Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15