How to wire in a fishfinder

[johnlsonderegger]

I have an Ebbtide 2200 SS Fun Cruiser and am installing a fishfinder. I would like to use the existing power at the dashboard. I one of the switches is not being used because my boat does not have the fresh water system. I am planning on removing the plate below the dashboard to gain access. Does anyone have experience in this area on this boat?

 

[DeepCMark58A]

The actual fish finder had an on off switch built in, no need to be redundant just hard wire to the battery.