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Unread 06-12-2011, 03:27 PM   #1
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Default Upgrading Wires to Head Unit

I'm thinking of running a line (fused of course) from the battery straight to the head unit and bypassing the main fuse block.

I can't seem to remember which of the 2 lines (main 12V or the ACC line), activates and runs the head unit. I don't want it to run down my battery. :\

I was, also, thinking of upgrading the ground wire(s) as well.

My plan is to buy pins that fit into the harness, pull the pins out, then fit the new lines in. If there's a chassis ground, hook that up too.

All these lines will be fitted with spade connectors so I can pull the unit out with little/no issue with wiring.

I know what I want to do, it's just that I've been out too long and can't remember how to do it.
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Unread 06-12-2011, 04:18 PM   #2
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On a AFTERMARKET system, and only aftermarket wiring the Yellow is Constant +12v. Red is ACC +12 or some call it ignition. And Black is ground.

Memory / Constant 12V(+) Yellow
Switch / Accessory Red
Ground Black
Illumination Orange/White
Antenna Remote Blue
Amp Remote Blue/White
Left Front (+) White
Left Front (-) White/Black
Right Front (+) Grey
Right Front (-) Grey/Black
Left Rear (+) Green
Left Rear (-) Green/Black
Right Rear (+) Violet
Right Rear (-) Violet/Black


How is the radio currently wired in? Were adapter harness used before? If so you can just cut the factory wires and plug in your extra grand and power wires to the factory harness, then plug the aftermarket one into it...

And why are you deciding to add the extra wires anyway?
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Unread 06-12-2011, 06:45 PM   #3
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The HU keeps dimming. I don't know if it's the wiring, the fuses, or the speakers.

Well, the fuse in the main fuse block is 10A (labeled RADIO. Nothing else). The fuse that is installed in the HU is 10A.

So, if it's dimming, it's somewhere in the fuses before the main fuse block.

Haven't been able to look at the wiring, but I'm guessing it's standard 10/12ga wiring. I know it's not much, but it should be able to carry the necessary power to the HU. My HU is rated for 50Wx4.

The speakers I installed are rated for 160W/ea with a nominal of 25W.

I am completely baffled as to where to minimize dimming with minimal cost.
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Unread 06-12-2011, 09:39 PM   #4
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it's your grounds. Upgrade them to 0/1 gauge.

1) Battery negative to chassis
2) Alternator to battery positive
3) Chassis to engine
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Unread 06-13-2011, 02:38 PM   #5
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Upgrade the grounds to 0/1 gauge? Have you lost your mind? Just for the head unit? Man, your list of comments to laugh at just keeps getting larger and larger.
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Unread 06-13-2011, 03:43 PM   #6
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Let's try to keep it friendly here. And whether you choose to go as large as 0/1 or not, upgrading your grounds a bit would very likely solve your problem.
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Unread 06-13-2011, 03:59 PM   #7
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Quote:
Originally Posted by legoman786 View Post
Upgrade the grounds to 0/1 gauge? Have you lost your mind? Just for the head unit? Man, your list of comments to laugh at just keeps getting larger and larger.
Sorry that I'm not Pbasil1 when it comes to audio.

Maybe I should go take my "comments to laugh at" and leave.
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Unread 06-13-2011, 03:59 PM   #8
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Quote:
Originally Posted by Gandalf View Post
Let's try to keep it friendly here. And whether you choose to go as large as 0/1 or not, upgrading your grounds a bit would very likely solve your problem.
I know, but would you upgrade just your grounds to 0/1 for a head unit that takes 200W (give/take) max? Just doesn't make sense.

Upgrading to 10 gauge sounds much more likely, but where to get the pins so I can replace the stock ground entirely?
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