Audio Systems: taking out stock head unit to hook up amp, loc line, fuse panel

Question
QUESTION: how do i take the head unit out of a 97 lexus es300?

ANSWER: If you're using an amp for subs, you don't need to take out the stereo.

You can use a LOC (Line-Out Converter) that taps right off of the rear speakers.

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QUESTION: what about hooking up the remote wire?

Answer
Run a fused (1 amp, 14 AWG) wire from a fuse in the fuse panel that only has power when the car is on to a switch. Then from the other side of the switch run the same sized wire to the REM (remote) connection on the amp. This allows for full control and you never have to worry about forgetting to turn off the amp. The switch is so you can turn off the amp at will so as not to give grandma a heart attack in the car.

Use a fuse tap that you can get from most any autoparts store.