It's a common coaxial cable. What I've done in situations like this is to solder the center wire, cover it in either heat shrink tubing or electrical tape.
Solder the shield wire and cover it with tin foil, then cover with heat shrink tubing or electrical tape.
If you skip the tin foil, you run the risk of radio interference.
Solder the shield wire and cover it with tin foil, then cover with heat shrink tubing or electrical tape.
If you skip the tin foil, you run the risk of radio interference.