Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
In the tank I'd try to use a heat shrink, solder connectors like these.
http://www.fastenal.com/web/products/detail.ex?sku=0710554
I don't believe those are gasoline resistant, nor the heatshrink. Thanks, anyway.