[C320-list] Install Raymarine Autopilot and Garmin GPS

[Bill Culbertson]

FWIW my boat came from the factory with autopilot on its own breaker, separate from 

the nav. instruments breaker.  I know the Raymarine manual recommends dedicated power 

lines to the AP rather than powering from Seatalk bus but it doesn't say anything per se about  

a dedicated separate breaker.  It does say it needs a 12A fuse or breaker.  Relevant section on page 51 is: 



• The autopilot requires its own dedicated power supply – it cannot 

source its power from SeaTalk. However, it can be used to supply 

power to other SeaTalk instruments. 

• You must fit a12 A fuse (or equivalent circuit breaker) to the 

+12 V supply. 

 

My fluxgate is in the location Jon and Rollie describe.  Pictures on 320 website at: http://www.catalina320.com/gallery/Harmony-859-misc-technical 



 -bill



----- Original Message ---- 

From: Jon Vez <jonvez at comcast.net> 

To: C320-List <c320-list at catalina320.com> 

Sent: Wednesday, January 9, 2008 11:42:02 AM 

Subject: Re: [C320-list] Install Raymarine Autopilot and Garmin GPS 

 

 Hi Joe, 

 

Congratulations on your new boat! There are extra circuit breakers  unless 

the previous owner used them for something. You can add the autopilot  to the 

circuit breaker of your existing instruments (wind, speed, depth) as  that is 

how it comes from the factory. For the GPS you can get power from an 

existing feed (I use a feed from the ignition)-- 

My AP compass is installed on centerline in the aft most bilge-right in 

front of the companionway steps and adjacent to the galley. This has  proven 

to be a good location as I haven't had any interference issues (my boat  is 

also a '99)-- 

 

Good luck 

 

Regards, 

 

Jon Vez 

#582 

 

-----Original Message----- 

From: c320-list-bounces at catalina320.com 

[mailto:c320-list-bounces at catalina320.com] On Behalf Of Joe Abbagnaro 

Sent: Wednesday, January 09, 2008 9:40 AM 

To: c320-list at catalina320.com 

Subject: [C320-list] Install Raymarine Autopilot and Garmin GPS 

 

Hello 

Need some help we just purchased a 99 320. The boat is spending the  winter 

 

on the hard in NJ and I am in CT. I just bought a Raymarine S1 Auto  Pilot 

for the 

 

boat., currently there is no Autopilot installed I also bought a Garmin  GPS 

4208 . 

 

I would like to install this equipment myself. 

 

 

 

Since I am not local to the boat can anyone tell me if there is extra  room 

for breakers in 

 

The factory fuse panel. I am assuming the S1 will have to run off a 

dedicated circuit. 

 

I was going to get power for the GPS from one of the existing feeds in  the 

helm. 

Any suggestions on where to install  the compass for the Autopilot, 

I have seen many  mounted on the ceiling  of the aft cabin. 

 

 

 

Can anyone provide me with this information., I have looked on the  site, but 

did 

 

not see a project for someone installing an Autopilot. 

 

 

 

Thank You 

 

Joe 

 

 

 

 







      ____________________________________________________________________________________
Looking for last minute shopping deals?  
Find them fast with Yahoo! Search.  http://tools.search.yahoo.com/newsearch/category.php?category=shopping