I managed to connect it without soldering. I simply spliced the wires.
I hooked it up as instructed but it didn't work. Fuse in the plug-in end looked good and was not burned out. The 12v plug in my vehicle is working because it charges my phone. No product wire polarity is indicated so I tried it both ways - - - still nothing.
Customer Service? Spend a few bucks to buy this yet have nothing to show for it.
I used a screw driver to unscrew the cigarette lighter plugs, both the old and the new one. I have used the old wire with the new cigarette lighter box. Pump has been back on service. Soldering not required.
High quality piece. Good price. Shipped and received on time. Thank you.