ligito

Hoestly if you have to ask this question you should probably not be doing your own installs in any way. That being said you splice the wire to a ground wire. The back wire from the unit harness will suffice.

People come here for information, not humiliation.

There are no dumb questions, just arrogant answers.

Try the bypass thread at the top of this forum.

How do I make the screen brighter?

Since battery was re-connected, it's dimmer and I can't find a setting to change.

I  installed the new trailer harness and it still work erratically.

I have low voltage at the fuse for the trailer running lights.

I have a new headlight switch and will try that before signing my life over to Ford, to find the problem.

The circuit is Headlight switch to relay, with a branch to the trailer brake controller, then on to the fuse and trailer harness.

I made a tester that includes incandescent lights for the trailer running lights and LED's, for the stop/turn lights.

I made a mount and glued it on the bottom, to attach to a tripod.

I set the tripod off to the side. so I can see when the lights are working.

When they work, the running lights are barely visible.

Then, when they feel like it, they come on full voltage.

I've not been able to determine the source of the proble.

The installer said he tapped into the backup light, behind the right rear lens, for the backup camera connection.

In tried to install my new harness and socket but the harness was too short.

Now I have to order another one that fits.

I have a newly installed AVIC-6000NEX.

The installer used T-Tap connectors.

It is causing problems with my trailer lighting.

When I turn the unit on, the head unit lighting is normal.

When I pull the light switch on, the head unit dims, whether the vehicle is running, or not.

This is also making my tail lights on my trailers intermittent.

Sometimes the lights will work and sometimes, not.

Brake and turn signals are working OK, just an issue with the tail lights, on 2 different trailers that have been in service and work on other trucks.