RF Receiver

Disconnect the negative(-) battery terminal.
Remove the crash pad. (Refer to the "CRASH PAD ")
Remove the PDM unit(A). Then remove the RF receiver(B) after loosening a bolt.

Fig 1: Identifying PDM Unit
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Identifying RF Receiver
Courtesy of KIA MOTORS AMERICA, INC.