My battery is being drained due to the power staying on after the ignition is turned off.

If the power to the car stereo remains on even after your vehicle has been turned off and it is draining your vehicle battery, this would be an issue with the installation of the car stereo system. To resolve this issue, we recommend that you contact a professional qualified installer.

NOTE: Due to the number of variables that may be encountered with different makes and models of automobiles, Sony is unable to assist with the installation and wiring of car stereo systems.