For safety, disconnect the negative battery terminal before connecting the amp's power lead.
Look for pre-existing holes through which you can route the amps power wire through the firewall.
Clearly marked preouts on the back of the radio connect to the amp (in the trunk).
Tuck your wires under the door trim hides the wires.
The rca cables from the radio connect to the left side of the amp.
Connect the ground wire to a bolt in the trunk via a nut a lock washer. Remember to sand around the hole--the ground needs to touch bare metal.
For Stereo Accessories, connectors, wire, speaker wire and more go to: