We have a 2006 3500HD crew cab with the LT2 trim package leather interior, which means only the drivers seat is electric. We would like to remove the front seats and replace them with the front seats from a LT3 trim package these seats would both be electric, heated, and we could have the "driver 1 & 2" memory seat on the drivers seat. My question is does anyone know if the wiring harness is there or would that have to be upgraded? I'm assuming the wiring is there and they just plug in what they need on each different trim package seating.

Thanks,

i did a write up on ls to lt but the 1 2 memory needs to be programmed into bcm and hard to say if ur wiring is there is ur seats heated or no. i no seat swap to electric can be done with heat but i had to get harness from donor truck