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Originally Posted by goldse
WOW.... 3 Pages and NO Answer ???
Ok, Just to let you know you don't have to use a Relay for powering up your cathodes. Each cathode transformer draws about 0.7 amps of power at 12 volts.
So unless your running 8-9 transformers a relay is OVERKILL.
You can run 1 wire (The switched Ground wire from the dome light) to the ground of the transformer directly, Then use a Constant Hot from the fuse block under the dash. That's how I did mine when I had my focus, then I wanted the Ability to leave them on all the time so I put switches in later.
Hope this helps !
Troy.
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id like to see how this isnt false, but im not having any luck...
there is no switched ground wire in the dome light circuits. period.
there is a constant hot, a constant negative (switched AT the light) and a fader negative.