Transom Mounted Transducer Placement

[TUGBOAT]

I'm going to mount the Garmin td right where Ya said,Thanks for that info.It came with a transom mount,
I also have a Furuno chartplotter,The td shoots thru the Hull.I bought this unit from a friend.It was mounted shooting through the hull,w/clear silicone,It was removed then replaced using a white silicone ? He said it did not work as well.Is there a trick or placement for a shoot thru hull ? I really don't want to put a HOLE thru the hull.I would really love to put in the bow/angle towards the bow SONAR !!!! Ok back to reality.
Scream'n Reels' [img]images/icons/cool.gif[/img]