chartploter, fishfinder instalation - dismantling dashboard

[michals 0]

Hi.

I would like to install a chartploter. My aim is to create a new dashboard part where speedo and rpm meter are placed.

How can I dismantle the dash board so I can get the seedo and rpm meter out?

 

Another question is about a good place for fishfinder transducer, so as neer to dashboard as possible, and so I won't have to crack the whole boat.

I have P79 raymarine through hull model.

[michals 0]

Ok I cope with desmantling the dash board. You have to unscrew the fuses boar below the whole dash. and then from the bottom it is possible to unscrew the nuts od the speedo module.

 

But now I have a question.

I have factory module like on photo 1.

Does the part on photo 2 with the same outside dimentions?

 

How can I order this part hole for gps in the middle?