Galliano

Hi guys, Something a little out of the norm, but has anyone ever removed the heated seat elements from their seats? I've come across an IS200 breaking and has the half leather (iirc) heated electric seats. I'm looking to retrofit the heaters into my Toyota Paseo. Is there any easy way of explaining how to remove them? Also, is there any interior wiring diagram for them? I'd like to use as much of the OEM wiring as possible, and wire it in correctly too. Thanks Sam