Dodge 2004 Ram 2500 Owner's Manual page 277

CAUTION!
Adding lights or electrical devices to the headlamp/
park lamp circuit can be accomplished by connecting
to the standard 4-way trailer tow connector located
behind the rear bumper. The maximum current ca-
pacity for the park lamp circuit should not exceed 15
amps total (a typical park lamp bulb can draw from
0.5 to 1.0 amperes of current).
No connections can be made to the headlamp switch
itself, because it is not designed for high current
applications. Connections to the headlamp switch
will cause the exterior lights to malfunction.
STARTING AND OPERATING 277
CAUTION!
Connect trailer lighting and brakes using factory
harnesses only. Do not cut or splice wiring to the
brake circuits. Use an approved wiring harness con-
nector on the trailer.
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