[drfeelgood]

I know it's hard to read every thread, kudos to the OP for even reading some of them prior to the install. Yes we all realized a while back that even when adding aftermarket amplifiers, you MUST leave the factory amp installed. A number of things are spidered through the amp.

For my build, We simply cut and taped off the wires leaving the amp, and sent signals from the new amps to the existing factory wires going to the OEM speaker locations as opposed to running new wires. In our cars, with the short distances traveled to the speakers, you really don’t gain much running new 16Ga speaker wires to your new speakers. Also, if you run them too close to a power signal, you can run into interference resulting in that annoying engine whine when you listen to music.