Pulled my seats out and looked at fuel tank thru the two holes in fiberglass. I found two hoses coming from back of boat on driver side. One enters take by sending unit behind driver, other one enters take behind passenger. No clue what they are for. I'm suspecting a take up fuel line and and a breather hose. I was exploring replacing the anti-siphon valve on my tank fuel line and possibly the fuel line itself. I took pictures thru the holes behind seats. The picture with the wiring is behind driver. The fitting are much larger than the anti-siphon valve I almost purchased to replace.