Ok i know this has been covered many times but i have forgotten the answer.

I have an 03 WRX and removed the seats almost immediately after purchasing the car, and i remember years ago i needed to buy a certain ohm resistor and stick it in somewhere, but i cant remember where or for what reason.

I have recaro seats in its place, but im getting ready to sell the car so im parting out all the aftermarket stuff and i want to find a stock pair of seats to put back in its place, anything special i need to do or the new owner of the recaros need to do before i put the seats back in?