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  #1  
Old 05-06-2018, 06:53 PM
rchorse37 rchorse37 is offline
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Join Date: Sep 2016
Boat: Mastercraft prostar 190 2004
Location: Northeadt
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2004 Prostar 190 stereo help

Our prostar didnít come with a stereo, so Iím looking to install a headunit and 4 speakers for now (amp to follow), but Iím struggling to figure out how to wire the headunit. Iíve read that even though my boat didnít come with a stereo, the wiring should be still be there. Can anyone point me in the right direction of what to look for? The unit Iím trying to install is a Rockville RGHR2.
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  #2  
Old 05-06-2018, 07:41 PM
MLA MLA is offline
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Join Date: May 2012
Boat: pontoon
Location: Lake Wylie Area
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The component will dictate the wiring more then the boat. Is the tech support at rockville have any assistance to offer? What I mean is, if a 2004 boat was pre-wired, it would have been pre-wire for what the factory had in mind for 2004. This is 2018 and rockville was not around in 2004.
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Old 05-06-2018, 10:29 PM
rchorse37 rchorse37 is offline
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Join Date: Sep 2016
Boat: Mastercraft prostar 190 2004
Location: Northeadt
Posts: 3
Thanks for the reply. I havenít tried contacting them yet. I wasnít sure if there was something simple I was missing...my first time installing something like. This unit has a black, red, yellow, and blue wire Iím trying to find a home for.
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  #4  
Old 05-07-2018, 03:38 PM
Jorski Jorski is offline
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Join Date: Jul 2004
Boat: 1993 190 with LT1
Location: Toronto, Canada
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Quote:
This unit has a black, red, yellow, and blue wire Iím trying to find a home for.
Black = ground (negative)
Red = accessory power. Connect to switched power (provide 12volts when key is on)
Yellow = constant on power. (12 volts all of the time) this provides power for things like memory pre-sets for programming channels and a clock if it has it.
Blue = 12 volts out. This powers an automatic antenna or turns on an external amp.

Note, these are the standard color uses. You should be able to find a description in the directions or at least on line.
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  #5  
Old 05-07-2018, 10:22 PM
rchorse37 rchorse37 is offline
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Join Date: Sep 2016
Boat: Mastercraft prostar 190 2004
Location: Northeadt
Posts: 3
Thanks. You’re right. The instructions labeled the wires like you mentioned. Right now I have the yellow connected to the positive post/terminal under the dash and then the black connected to the negative bar/terminal and have it working. Will look to fine tune this. From here would I connect the red wire to an accessory switch or the ignition and then once I get an amp the blue to the amp?
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headunit, prostar 190, stereo

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