I need to replace the seatbelt stalk on driver side. I see that there is a wire that leads to the front.

Is it as simple as removing the seat, bolting on new stalk and splicing into the existing wire with the new wire?

This is my first Volvo and my first problem to tackle!

 

It will come with a new wire and connector. Don't splice anything.

 

I have the wire but no connection in the end, but is it simple pull other wire out and put this one in?

Do i need to d/c battery?

 

You're talking about the buckle, right? Can you upload a pic?

 

Yep the buckle only
Link to PIC: https://postimg.org/image/fn47fgvl9/

My main concern is setting something off by playing with the wires

 

That's a used part I assume?

 

Yeah, prev owner gave it to me but it looks like it

 

Whoever picked it from the junkyard cut the wire instead of removing the connector from the connector block under the seat.

 

Is it safe to splice into the existing wire in that case?

 

You can try it. Not sure how sensitive the resistance measurement is. If you have an SRS light on when you're done you'll know where to look.