Pioneer TST-MLD-I-WP24 Installation & Owner's Manual page 11

3. Installation method
6.Installation Diagram
Connect the wire from the master control board of the indoor
unit to a connecting cable. Then connect the other side
of the connecting cable to the remote control.
4-core wire
NOTE: Be sure to reserve a length of the connecting
wire for periodic maintenance.
If there is a connection lug at the end of shielded wire,
the connection lug should be properly grounded.
The connective wires group
Fig. 3-8
Magnetic
ring
Front grille
shielded wire(some units)
8