According to Rigid, the total length of the wiring harness is 14ft. Depending on how far you're mounting them on the bow, you may have enough wiring length to make it back to the battery compartment/stern. While we don't sell extensions, it's fairly easy to use butt connectors to extend the wiring harness, which would be ideal for a marine application anyhow. Alternatively, you can grab the Starkey Complete Backup Wiring Kit that will come with more than enough wiring, as well as a nicer Contura-style switch, versus Rigid's standard cherry switch.