Here is the wiring diagram for the dual deh665
The yellow wire with the rca connectors is auxiliary input. (this is beside the antenna connection).
The following connections are on the connector that plugs into the head unit.
The gray wire with the rca connectors is the preamp output.
The blue wire is remote turn on.
The black wire is chassis ground (-).
The red wire is accessory (+). (ignition).
The yellow wire is memory (+). (connect to a constant +12 volt supply)
the speaker connections
Right front--Gray/black negative (-).
Gray positive (+).
Left front-- White/black negative (-).
White positive (+).
Right rear--Violet/black negative (-).
Violet (+).
Left rear-- Green/black negative (-).
Green positive (+).
Fuse replacement
10 amp atm, located beside the wiring connector.
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