Wiring Problem, Headunit - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 24 (permalink) Old 01-07-2008, 09:40 AM Thread Starter
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Wiring Problem, Headunit

I decided to go with the JBL Marine AM/FM/Sirius/ipod setup on my rhino. Basically its a brain unit thats weatherproof that you mount behind the dash, and a waterproof display that you mount on the dash. Its a really nice setup, but it has giving me some troubles.

I am pretty good with wiring and have never really had any problems up until now. I wired it up pretty basic, I wired the yellow and red wires from the head unit (power and memory) directly to the + on the battery, and the ground to the - of the battery. Everything worked perfect...

One day I left the rhino outside in my driveway on the trailer and my brother came home around 3am and said... hey your rhino is outside bumping, lol... I guess it turned itself on?? So he shut it off... next night same thing, it came on by itself.. it drained the battery that night.

So I go riding the other day, jump it... stereo turns on, but.. the display does not work, the sound works fine tho.. so while riding it starts to go crazy... shuts off, turns on.. wouldnt stay on, etc...

I also noticed when I turned the rhino off, instead of the speedo turning right off, a few lights flashed and then it shut off?? Kinda weird.. so I pull the fuse for the radio.. then try n shut the rhino off again, speedo shuts off like normal.

Do I have some kind of ground issue, stereo issue, or both? I did not use a relay and I also grounded to the battery, not the chassis.. could this be an issue? The reason I wired it like this was because I did not want the hour meter to keep running if the rhino was not running while listening to the stereo.

Should I install a relay? Ground to chassis? Or do I just have a wacky stereo thats a lemon?

Thanks!!

- 2007 Yamaha Rhino 660
- 2005 LE YFZ-450
- 2004 GMC Denali
- 1995 Toyota Supra GT42R 727rwhp
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post #2 of 24 (permalink) Old 01-07-2008, 09:51 AM
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I would start with checking the power connections but it sounds like a bad unit.

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post #3 of 24 (permalink) Old 01-07-2008, 10:03 AM
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I would say the remote display is the issue, Check the connection from the stereo.

I do not have a stereo in one of mine and my display will also blink like that after a "hot ride".

The other RHino has a stereo installed similar to yours (wired without the key)and the display does not blink after any ride.

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post #4 of 24 (permalink) Old 01-07-2008, 10:14 AM Thread Starter
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Well I checked the cord going from the display to the headunit and sure enough its secure as can be... I even unplugged it and re-plugged it in.. still nothing. Im guessing its a bad unit... I mean there is no reason for it to turn on my itself.

Is my ground ok? Or should it be grounded to chassis... I should add by the way, my rhino is stock, meaning no CDI grounding issues.

- 2007 Yamaha Rhino 660
- 2005 LE YFZ-450
- 2004 GMC Denali
- 1995 Toyota Supra GT42R 727rwhp
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post #5 of 24 (permalink) Old 01-07-2008, 11:22 AM
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If you are grounding to the Batter direct you are fine there.

I have always stated that a larger ground should be added to the frame near the Battery anyway. The main ground from the battery only goes to the motor and a very small pigtail goes to the frame.

This help ensure any accessories added will have sufficient grounds.

This does not include grounding to the stock cage or front bumber as these are bloted on and do not provide the ideal grounding situation.

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post #6 of 24 (permalink) Old 01-07-2008, 11:54 AM
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I would rule out the ground and get a good chassis ground. I never ground any accessory to the negative side of the battery. Kinda like when you jump start a car you're not supposed to put the negative to the battery but rather to a chassis ground.

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post #7 of 24 (permalink) Old 01-07-2008, 12:08 PM
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Mosslager,

The only reason for that is the spark potential and the gases from the battery.

THe little rhino wire to the chassis is not adequate at all.

Like I said adding a larger ground to the chassis should be done on all rhinos.

However this will not affect his stereo issue in the manner he has described.

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post #8 of 24 (permalink) Old 01-07-2008, 12:15 PM Thread Starter
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I figured my ground was good (well good enough) for a simple 2 wire stereo install without an amp. So basically I got a junk unit. Time to call and complain!! They say "Marine Grade" it lasted 2 times in the Rhino.... ALTHOUGH, Ill admit I did leave it out in the snow for like a week..... maybe that was the problem?

- 2007 Yamaha Rhino 660
- 2005 LE YFZ-450
- 2004 GMC Denali
- 1995 Toyota Supra GT42R 727rwhp
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post #9 of 24 (permalink) Old 01-07-2008, 12:55 PM
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hmmmm... don't tell them that

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post #10 of 24 (permalink) Old 01-07-2008, 01:06 PM
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The ground at the battery will be fine, When I did big car audio systems we would do the same. You have a bad unit imo

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post #11 of 24 (permalink) Old 01-07-2008, 01:13 PM
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i would say the unit is bad also i can get you the wire color for turn on when i get home so it wont sparaticly turn on because hooking you ignition up to hott if it sees a voltage increase or decrease could cause it to turn on
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post #12 of 24 (permalink) Old 01-07-2008, 03:05 PM Thread Starter
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Quote:
Originally Posted by Ultimatesxs View Post
i would say the unit is bad also i can get you the wire color for turn on when i get home so it wont sparaticly turn on because hooking you ignition up to hott if it sees a voltage increase or decrease could cause it to turn on
Thanks, I appreciate it, but to be honest, if I do it that way, then my hour meter is going to run away while im listening to it if the rhino is not running..

- 2007 Yamaha Rhino 660
- 2005 LE YFZ-450
- 2004 GMC Denali
- 1995 Toyota Supra GT42R 727rwhp
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post #13 of 24 (permalink) Old 01-07-2008, 03:13 PM
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We run a switch on the dash or in the glove box so the ignition source is not needed. This way the unit can't turn on by itself. I have installed several of the JBL units you describe with no problems. Did you mount the brain with the metal finned piece pointing down?
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post #14 of 24 (permalink) Old 01-07-2008, 06:54 PM
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I would check the ground wire. Do not go to the battery.
AZcourt has great suggestions also.
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post #15 of 24 (permalink) Old 01-08-2008, 05:52 AM Thread Starter
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Quote:
Originally Posted by AZCourt View Post
We run a switch on the dash or in the glove box so the ignition source is not needed. This way the unit can't turn on by itself. I have installed several of the JBL units you describe with no problems. Did you mount the brain with the metal finned piece pointing down?
No actually I mounted it with the metal facing up... is that a problem? If so I can switch it... I dont remember it saying it had to be mounted with the metal face, facing down. I mounted it up because I figured, the higher up on the dash the connections, the less chance of them getting wet.

I tried calling JBL Marine and its useless... the number they give is for some other company. Do you happen to have a contact for JBL? It just sucks because this unit is only 2 months old and its acting up...

- 2007 Yamaha Rhino 660
- 2005 LE YFZ-450
- 2004 GMC Denali
- 1995 Toyota Supra GT42R 727rwhp
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