If you want to replace the factory amplifier in your Acura RL these harnesses will allow you to so. The two harnesses provide you a direct connection to all the factory speakers and the output of the factory radio.
The bypass consists of three harnesses
The first harness has the connections to all the speakers except for the front speakers.
The second harness has the the connections to the front speakers .
The third harness has the audio output form the factory radio. The output from the factory radio is FR, FL, RR, RL, SUB, CENT