Car Stereos: Installing a sub in a 04 malibu, level inputs, speaker level

Question
I want to install an amp in my car but there is no RCV output for my radio. How would I Install it another way?

Answer
Hi Chris,

You need to buy a deck that has 'speaker level inputs', and then run regular speaker wire off of the wires going to the speakers in the car into the amp.  It shouldn't draw too much juice from them, as it doesn't need the amplification, just the input signal.

Using that, you can install aftermarket amplifier(s).

Good luck,
Justin