Moin On the other hand, I would need some help with my V70 2.4T Bj 12.98 changed the driver’s seat, the new one no longer only has two cables for the seat heating, but with one three…black(mass) red and one yellow. –What is the yellow cable for, because I only have red and black on the vehicle side, I have to put it on red?! And then the whole thing goes into a black box and from there to the hot mats first. –What is this box for? And where is this sit? z the thermostat installed?! also at the back?! Would be very grateful for any answer. with warm Volvo greeting Günter Q