heated seats

Just brought a new passengers captain seat and its heated, any one retro fitted? part numbers of heated seat switches or has someone got a number plate I can borrow?

I intend to retrofit swivel seat bases at some point. The front seats I have specced are heated, does anyone know of any potential issues with wiring to seats when seats are being rotated? Most of the sftermarket bases I have seen have wiring access through the centre of the bases, just...