Ivylog wrote:
"Also, we haven't discovered what those speakers are connected to yet" There is a switch besides the bed that lets you select either the back TV or the dash radio. Unfortunately they did not twist the wires coming from the radio so you'll probably have a 60 cycle hum in it.
Probably not. The level of inductive noise on even a long wire runs, compared to the speaker level output is is nil. That is only going to be an issue with low level signals that are later amplified. More than likely, the amplifier output is bridged, so both wires are hot. This means that any signal induced on the wiring will not be amplified, as it is on the output, rather than ground. Where you can get into trouble is when you induce signal on the ground side. Since the low signal amplifiers are referenced to ground they could in turn amplify any noise on the ground, but even that is unlikely. This does not apply to car radios, because the output is not referenced to ground.
