Question about Clarion M455a Marine Cd Receiver

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Installation manual clarion m455a

Need the wiring and installation diagram for the clarion model m455a

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  • gman285 Mar 05, 2009

    I need harness wire connections wire colors.


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Here is the product page:

And here is the manual:

In page 33 you'll find the wiring chart.

Posted on Dec 29, 2008

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The diagram for the fish finder has two cables for power. does each cable have a wire going to a hot lead and a groundand a bond or do you just need to connect only one wire

One of the two cables is for power to the battery while the other supplies power to the transducer. BOTH cables (+ and -) must be used and intact.
In case anyone requires it, here is the link to the installation manual.
Hope this helps.

Feb 28, 2015 | Lowrance Elite-4x Fishfinder


Download Clarion M301RC Manual

Download Clarion M301RC-RET Marine Remote-Mounted Control Panel Manual


Have you misplaced your Clarion M301RC-RET Marine Remote-Mounted Control Panel Owners Manual / Installation Guide?

Would you like a digital, searchable, pdf version of the Clarion M301RC-RET Marine Remote-Mounted Control Panel Installation Manual / Users Guide?

Follow this link to download a pdf version of the operations manual.

I hope that helps.

on May 03, 2010 | Marine Electronics

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Marine radio manuals

Hi Sean,

You should double check your wiring. I looked online for wiring diagrams for your radio but couldn't find one, however they're not unlike automotive radios. Assuming you have checked and installed the fuses in the wiring harness already, continue reading. otherwise - check them now.

The thing that comes to mind is the (3) power wires (two +12VDC and one -12VDC) that these radios often require. One power wire is connected to a constant power (+12VDC) source that maintains both the radio station memories and a clock if equipped. The second power wire is optionally connected to a switched (+12VDC) power source such as a dash mounted toggle switch or the ignition key. This wire can be connected directly to the battery as instead with the first wire, but you will need to power on / off the radio by its power switch as opposed to relying on the ignition key or dash mounted toggle switch.

Many marine applications are in fiberglass surrounds. You must make sure that the third power wire (-12VDC) is connected to something metal that is connected to or, directly to the (-) post of the battery. All three wires need to be connected to operate as expected.

Hopefully, one of these wires is not connected properly and you'll have your radio working in a very short time. Good luck!

Sep 27, 2013 | Boss Marine Electronics

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There may be a fuse link or diode inside of the unit. You would have to dissasemble to locate. Depending on your skills, you can do this yourself. It would probably be expensive to have a shope repair it.

Jul 05, 2013 | Clarion M455a Marine Cd Receiver

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Clarion marine M455A

Go to the CLARION website and look for CUSTOMER SERVICE. You can either call or e-mail a description of your dilemma with the radio. The company stands behind their products. If it is still under warranty you may find it easier to first go to the store where it was purchased. They will give you a new unit if it is within the 30-day purchase date or at least offer to send it to Clarion for repair. Make sure you get a RETURN AUTHORIZATION number from the company. As far as being a "marine" radio, it is still an electrical product in a wet environment. The radio chassis is protected with a stainless plate to shield the circuitry. There is gasketing to prevent moisture from entering. Even the so-called waterproof handheld vhf radios claiming submersible protection have a limit to how long it can remain submerged before it loses watertight integrity. If saltwater invades to circuitry, immediately disconnect the power source (never try to turn it on if it IS wet.) and remove the unit so that you can RINSE as soon as possible the exposed electrical connections with FRESH WATER to remove the salt BEFORE it drys and becomes encrusted. Do Not allow the salt water to dry and become encrusted and the damage is done. Salt destroys electrical connections; eats 'em up! THEN blow-dry on a low setting and set it aside to complete the drying out process. Some wags suggest placing it in the oven on alow setting. I DON'T. Good Luck.

May 31, 2013 | Marine Electronics

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I have a clarion m455a marine raidio in our new boat. It has two cmrc3d remote control stations. niether one of them work. Why

Sorry I can't help you...but wanted to let you know you are not alone. I bought a 2007 Chap last March and have the same problem. I've covered all the basic/common sense troubleshooting but can't get them to function. My frustration is that the displays work so the clock/radio station is displayed but nothing in regards to controlling the deck.

Aug 08, 2010 | Clarion M455a Marine Cd Receiver

1 Answer

Wiring diagram for 12/24 volt system

here is a wire diagram. follow the pictures. you can do fuses but i like inline breakers. you can get them at your local outboard dealer.e9e9f8a.jpg

Nov 05, 2009 | Marine Electronics

1 Answer

Radio works on tech bench, not in the boat

Yes, the yellow wire is the switched hot lead - it is typically connected in one way or another to the ignition switch. There is also a smaller gauge red wire that is connected directly to the battery (through a fuse of course). Both of these wires have to have power for the radio to work. Also the black wire has to be connected to a good ground. If all three of these wires are confirmed to be in good order (power where there should be power, ground where there should be ground and no shorts) the radio should at least power up when they are all hooked up and the ignition is on.

Jun 16, 2009 | Clarion Marine Electronics

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