Review on 12V DC 5.5mm x 2.1mm Car Cigarette Lighter Power Adapter Cable by JacobsParts - 2.5 Feet by Russell Smith

I gave it 5 stars because of the quality but after ordering I couldn't use it because the end that was supposed to fit my radar detector didn't work because it was too big. They didn't say anything about the different sizes on the receiver side. I'll keep it because sooner or later I'll use it for something somewhere. They should have more information about their product. I didn't even know there were different sizes. It's probably my fault, but still. Good luck and make sure it works before you buy it as I don't know.