Re: [Cal_Boats] Marine Stereo Install QUESTION for my Cal 27' Pop Top

The yellow wire is also the main power supply wire for the radio...if you don't connect it to +12 volts, the radio will not power up. The switched red wire is a control wire that turns the main power supply on/off in the radio. In a car this is what turns off the radio when you kill the ignition. The yellow wire requires about a 10 amp fuse, the red switched wire only needs a 1/2 amp or so fuse. When the red wire is switched off, the yellow wire only carries a few milliamps to maintain memory and clock functions. Best- Mark and Terry Rogers Mobile Marine Electrical Services/MMES Custom Panels "Seirenia", 1966 Cal 36 hull #22 Newburyport, Ma

The stereo is designed to be used in situations where the power (red wire) is turned off by an ignition switch or battery switch without losing its presets. Normally, the red wire would be connectred to a fuse or circuit breaker that is connected to the boat side of a battery switch (assuming a sailboat installation). The yellow wire provides a small amount of power to the memory to hold your presets and would be connected directly to the battery positive (red wire) and the black wire should be connected to the battery negative (black wire). It is marginally safer, but less convenient, to connect the red and yellow wires together and connect them to fused line from the battery switch. That way when you turn the battery switch off, everything is off, but you will lose any presets you have put in the radio every time you do that. Further, it is possible, but probably not likely, that by connecting the yellow wire to battery minus that you may have damaged the radio. Hook it up as I described and see if it works. Good luck, Al > > From: "James Sol Radina" <ja… [at] gmail.com> > Date: 2006/06/26 Mon PM 10:25:48 EDT > To: Ca… [at] yahoogroups.com > Subject: [Cal_Boats] Marine Stereo Install QUESTION for my Cal 27' Pop Top > > I am trying to install a marine stereo. Does anyone know where my > grounding plate would be? > > I could not get the stereo to work and this is what I did: > > I just bought a marine stereo and speakers from West Marine. > > The instructions were very very basic. Pretty much it said this: > > Black Wire- ground chassis > Red Wire- Accessory, connect to switched 12v source or ignition > Yellow Wire- Memory, connect to battery curcuit or constant 12v source > **Manual: (page 3 shows these basic instructions) > http://www.dualav.com/i/product/manual/MXCP40_OM%2011-20-03.pdf > > SO, I Disconnected negative battery terminal. > > I took the yellow and crimped a ring onto it and attached it to > negative(black) battery terminal. > > Then I took the red wire and put an inline fuse (10amp) in the middle > of the line and then cripmed a ring onto it and attached it to the > positive(red) battery terminal. > > Then I attached the black ground wire to a screw I found on the > accessory panel. Not sure if this is the reason the stereo did not > turn on or what. Is there a specific grounding place on my Cal 27? > > Or did I just wire this all wrong? > > Thanks for any and all help. > Thanks! > > James > San Diego > Cal 27 > > > > > > > > > Yahoo! Groups Links > > > > > > >

>I took the yellow and crimped a ring onto it and attached it to >negative(black) battery terminal. yellow goes to positive side of battery, prior to battery disconnect switch. > >Then I took the red wire and put an inline fuse (10amp) in the middle >of the line and then cripmed a ring onto it and attached it to the >positive(red) battery terminal. > The red wire can be left this way, but if someone leaves the radio on, the battery will be drained dead. Connect to the output side of the battery disconnect switch unless you are going to rout it through your breaker panel via an accessory switch or breaker, or a dedicated "stereo" switch or breaker. >Then I attached the black ground wire to a screw I found on the >accessory panel. Not sure if this is the reason the stereo did not >turn on or what. Is there a specific grounding place on my Cal 27? > >Or did I just wire this all wrong? > The accessory panel may not be grounded. Attach the black wire to the negative side of the battery or to a common grounding buss unless you want to run a ground wire to the accessory panel. >Thanks for any and all help. >Thanks! > >James >San Diego >Cal 27 > > > >