| I am not sure of your question but your amplifier should be fused (protection for your car), read the owners manual for fuse size. This goes on your main power lead.
The "rem" wire at the amplifier, will go to the blue/white wire coming out of your 9823. This will turn on the amplifier whenever your Alpine is turned on.
The battery will drain only if you have a lot of "parking lot" time with the motor not running. With it running, your battery could ride shotgun with you, it runs off the alternator.
Hope this helps...
BTW, the battery will also drain if you listen to a lot of Merle Haggard or any other form of 70's music.
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