Question by Eric: how do i turn on a factory amp with infinity audio on a 2004 dodge ram 1500, with a after market radio?
I bought a install kit. The power comes on but there is no sound. I believe it has something to do with the factory amp I hope there is a way to install without hard wiring to all the speakers. I know the radio is new .
Answer by PimpMyRide
When you install an aftermarket head unit to a vehicle equipped with a factory amp, it’s usually necessary to use an “amp bypass” harness.
This one appears to be the one for your vehicle:
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