Im assuming you are talking about the hydraulic fluid for the steering? All the ones Ive seen on BassCats have been on the top of the dash. Heres a pic I took of my dash that I took when I was trying to decide where to put my Ram mount, but you can see the fluid fill cap just to the left of the Ram mount. Id think anywhere on the dash would be fine. Jim EbarbMany, LA (Toledo Bend Lake)2004 Cougar/ 225 OptimaxHumminbird Helix 12 Chirp SI on BalzOut Mount at bowLowrance HDS 7 at bowHumminbird Helix 12 Mega SI on Ram Mount at ConsoleLowrance HDS 8 in dash at console