Please Help Me Mount Humminbird 345c to new Kayak (Equinox 160t)

Hello all,
This is my first post.  There seems to be a lot of good information here on the board. However I need help setting up my FF.

I got the Equinox 160t which is a multi-hull sit on top, double man kayak.  There is no way (seemingly) to get into the space between hulls to mount the transducer inside and also run the wiring.  All the guides here and on the net always seems to show kayaks which the installer can easily get into the space between the hulls to mount wiring and transducer directly to the inside flat area of the bottom with this marine goop stuff.  The thing is, it seems the only way I could access the inside lowest point on the bottom of my kayak would be to cut an opening of the outer hull just so I can access the inner hull, which I don't know is the best idea.  Even if I go through the middle compartment, I would need to cut into the outer hull.

Is this a good idea?  Is there another option? This is a link to to kayak I have in case you need to get a better idea what I am talking about:

http://www.equinoxkayaks.com/produits_160.html

Please help out if you have any ideas to solve this problem, namely how to best get that transducer into and adhered to to inside bottom of the hull?  I think if I can figure out how to do this, it would also solve my seemingly impossible, without cutting open a working hole into the outer hull, problem.

Thank you.
~Darek

The transducer doesn't have to be at the lowest point on the hull, any flat spot on the hull will do!  Another option is to mount it through the scupper hole or to the side of the yak.   It would help if you take a "top view" picture of the yak and post it here so we can see it clearly the layout.

I will try to get a pic however the picture provided in the link is direct from the manufacturer.  Lets see if I can snap a pic or two.

Thanks

it looks like you have a hatch behind the front seat. I assume you can access the hull that way. If so thats where the transducer can go.

I think Sonny's go the right idea, since you have a Hummingbird, the scupper mount sounds like a good way to go.  You can apparently do a one time exchange with them to get the new ducer. 

For an inside mounting job, you will probably need to find out what they mean by a Multi-Hull for your kayak.  If that means there is a double wall insulation on the yak, you may not be able to use a shoot through hull transducer mount, if there is an air pocket between the transducer and the outside hull.

Nothing wrong with mounting the transducer on the outside of the yak, either. Maybe attach a bracket to the side or stern that allows you to connect & disconnect the transducer. Because it will work as long as it's dangling in the water. And it'll give more accurate readings this way too.

cut a hole in it = install a hatch.

Yeah, I think that going through the middle hatch is the best way.  I'm thinking about cutting through the bottom of the inside of the hatch and hopefully getting to the inside of the hull.  I'd hate for there to be any surprises like mentioned above, having a hull within a hull.  BUT, I think the fact that there is no way for me access inside easily, is what the double hull thing means, hopefully if I cut through the bottom of the hatch I'll be where I want to be.

 

  Yeah, get that overhead shot of the hull for us.  And yes, if the hull is "Double" as Al mentioned, with an air gap between them, if you can't get the transducer to the outter hull (One that contacts the water) The transducer will not work from inside.  The transducers are meant to shoot their signals throuh water not air. 
  Post a few shots, definetly one from inside the hatch as well.