Show me ten Lagoon
380s and ten Ventura 150s and I'll show you ten different installs.
There is really no one right place to install this unit on your boat. After installing a lot of these units I find that it will mostly depend on what space your wife will allow.
As Delmarrey states, read the instructions first, allow three to five full days to install it, and use the number below and give me a shout if you need any help with anything that doesn't make sense. Good Luck (954) 515-7077 ask for J.T.