[Serf27]

Where do the wires for the passenger seat go do the heat can work?

Splicing an additional power and negative wire to the car harness connector doesn’t do anything for lumbar support or bolsters.

For the heat, it’s just 2 wires needed to run to the jbbe or fuse box?

Here’s a photo of my car harness and the harness from the diner car.
Left is mine.
Right is donor car and it has extra wires on top.