TN LX570
SILVER Star
The power 3rd row seats in the LX have 12V constant lines in their connectors. There are actually 2 hot wires in each connector. Each connector has a larger constant 12V that each have their own 30A fuse under the glove box. (red on left side, blue on right). There is also a smaller gauge hot wire on each connector that both flow through the ECU-B2 5A fuse in the engine bay (red on both sides).
Wires are highlighted below:
Fuse Locations:
If you want to retain the factory connector to plug in the seats, I believe these are the parts needed to make your own harness:
Female Toyota Connector: 90980-12373
Toyota Pin: 82998-24270
Replacement Pins
3https://www.corsa-technic.com/item.php?item_id=967&category_id=211
Wires are highlighted below:
Fuse Locations:
If you want to retain the factory connector to plug in the seats, I believe these are the parts needed to make your own harness:
Female Toyota Connector: 90980-12373
Housing Connector M 90980-12373 | Toyota Parts
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Toyota Pin: 82998-24270
Replacement Pins
3https://www.corsa-technic.com/item.php?item_id=967&category_id=211