Looks like tin foil is making the connection in the female connections.

Better wiring with a more robust connection that resists vibration and exposure to stress would make these a five star unit.

I used butt splice crimps and heat shrink, trying to find bad connections on the side of a highway is no fun.

I soldered all the connections and heat shrinked them as well to keep water out and corrosion down

signal lights were inop with correct connections and good voltage applied.

As with all trailer lights, you have to make sure you have a good ground connection

However, the instructions sucked, some connections were useless, some parts were not provided, and some of the wiring was poor

Cheap pins and sockets shaped differently than standard resulting in loose/no connection.

They are so thin they won't hold their shape making the lights on the trailer flicker because of the poor connection.

To make matters worse, the plug connection is off and makes a poor connection if it makes one at all

It broke off the connection and when I went to strip the wire

The problem was a loose connection under all of the water proofing sealant on the back of the LED assembly

The connections which were supposed to pinch the small running lights to the main wiring were useless

After I meticulously ran the wiring, made the connections and taped everything, the lights did not work correctly

I soldered and heat shrinked all connections because it makes a better, longer lasting connection

Cheap quality, and bad connections

The spices either don't make a connection or they sever the wire completely

After days of troubleshooting turns out the problem is a bad connection in the wiring harness

n’t work