Wire and 12v help.

I picked up a dometic cfx40 and am running blue seas below deck fuse panel with 2 12 volt ports to the bed of the truck. The 12volt connector doesn’t seem to work well (poor connection )with the 12 volt ports little vibrations and shaking the wire causes a loss of power to the fridge. When compared to the factory ports in the cab the positive terminal is pretty large and round where the blue sea are smaller and squared. The positive on the wire supplied from dometic is also much larger than any of the other 12volt power wires I already have.

I was wondering if anyone had a suggestion to make this work better. I don’t want to have to worry about my fridge being off and food going bad before I get to where I’m going to be camping.

 

Those are designed to work with the blue sea twist lock plus. I'd snip the end of yours off and splice this in, should keep it from coming loose.

https://www.bluesea.com/products/1010/12_Volt_Plug