Repair Procedures: Removal

Disconnect the negative (-) battery terminal.
Remove the luggage side trim [RH].
(Refer to Body - " LUGGAGE SIDE TRIM ")
Loosen the nuts (A) from amplifier.
Tightening torque:

3.9 - 5.8 N.m (0.4 - 0.6 kgf.m, 2.8 - 4.3 lb.ft, 34.7 - 52.0 Ib.in)

Fig 1: Locating Amplifier Nuts
Courtesy of KIA MOTORS AMERICA, INC.
Remove amplifier (B) after disconnect the connector (A).

Fig 2: Locating Amplifier And Connector
Courtesy of KIA MOTORS AMERICA, INC.