First off you need to go to walmart or best buy and get a wiring harness for you car. the new wiring harness plugs right into your stock harness and have the same colored wires as the cd player has.....(color to color....purple goes with purple....green with green, ect). you also need an instalation kit. again go to walmart or best buy. read the instructions and dont be nervous when it tells you to use the corolla parts. if you have anymore trouble just email me.
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