Audio Systems: install amp in 2004 lexus es330, lexus amplifier, lexus hi low

Question
does my 2004 es330 have a factory amp i can wire off of?or does it have rca jacks on the factory stereo?

Answer
factory amplifier on the right side of the glove compartment
you can add a hi low interface there or on the rear speakers
you need a hi low
here is one i use comes with the remote turn on wire

good luck

http://www.oemautosound.com/pc-575-132-pie-2-channel-high-to-low-converter.aspx