2005 X-2 Depth Finder Transducer Location

Hello. I am going to install a stock depth finder in our 2005 X-2. I have planned it all out except for where the transducer goes. One dealer tells me to put it on the floor of the engine compartment. Another guy told me that he installs them in the hole where the plug is and one of the bilge pumps. I cannot see how there is enough room in the bilge area and the fins are directly beneath it. Supposedly, these boats come with a "flat spot" where a depth finder transducer is suppose to mount. If any owners of this boat with a factory installed depth finder could snap me a few pics of where their transducer is located, I would be extremely gracious.