HU to battery (alpine 9835)

[zachzchw 5,000+ posts]

What do you mean you dont have the knowledge?

If you put the deck in by yourself, you can wire it to the battery yourself. Its just taking a wire through the dash to the battery.

Still, I wouldnt do it.

I call BS on the extra power thing.

 

[cam5860 10+ year member]

Look at it like this if you had a small 4 channel amp putting out 26 rms x 4 would you run 16 guage power wire to it or 10 gauge power to it.

Samething here the 9833 and 9835 have the v drive amp built in it's draws a lot of current believe it or not for a headunit.

It won't hurt anything running it to the stock harness. Mine did not overheat or anything. It's just hurting your performance basically your starving it for power.

 

[phantom240 5,000+ posts]

im probably going to end up doing this in my 1991 nissan 240sx.. the deck dims really bad and if im not mistaken, the factory wiring throughout the car is like either 16 or 18 gauge wire... the original system drew an incredibly small amount of power, because each speaker had an amp for it...and the stock speakers were clarion 4x6's with a nominal power rating of like 5w... bangin!//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[thai_creeper 10+ year member]

What do you mean you dont have the knowledge?If you put the deck in by yourself, you can wire it to the battery yourself. Its just taking a wire through the dash to the battery.

Still, I wouldnt do it.

I call BS on the extra power thing.

I don't have any experience with a solder(dont have one), all I did puttin in the deck is match up the colors, strip, twist, and cap..also I'm still not clear about where to connect the 10 guage to the power wire, for example:
DECK]-------{HARNESS}-------[car

where would I cut, between the deck and the harness? would I buy a small amp install kit for connecting it to the battery?

thanks for all the help so far everyone

 

[zachzchw 5,000+ posts]

Nope, you wouldnt need an entire amp install kit.

Go to autozone/walmart or wherever, they sell small rolls of wire in 10 gauge.

 

[thai_creeper 10+ year member]

Nope, you wouldnt need an entire amp install kit.Go to autozone/walmart or wherever, they sell small rolls of wire in 10 gauge.

gotcha, wut about the little part to connect to the battery? do they sell those seperate from amp kits too?

 

[iceteebone 5,000+ posts]

that is the opposite to what you should have done...
why ground to the battery when there are DOZENS of places you could ground it behind the dash //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

why should i have ran the power to the battery? it's getting plenty of "juice" through the harness. the best ground in the car is at the battery so why not ground there? why drill a hole in my fire wall, sand it down, get a bolt and tighten it down, when all i gotta do is feed the wire through where i ran my power wire. it was a 10 minute procedure. also there wasn't "DOZENS" of places behind my dash cause it was nothing but plastic behind the deck.

 

[BodegaBay 10+ year member]

Creeper: Here is the Crutchfield archived link to the 9835. Read the bottom paragraphs regarding wiring instructions if you intend to use the H/U's internal amp. If you are using outboard amps and disable the 9835's internal amp, then you should be fine with the factory harness.

 

[thai_creeper 10+ year member]

Creeper: Here is the Crutchfield archived link to the 9835. Read the bottom paragraphs regarding wiring instructions if you intend to use the H/U's internal amp. If you are using outboard amps and disable the 9835's internal amp, then you should be fine with the factory harness.

thanks for the info, runnin the internal amp so thats why im interested in all this

why would you bother running the negative to the battery, when the best place to connect the power cable in the whole car, IS AT THE BATTERY ASWELL!!!
why didn't you use the original wiring for the ground connection? hmm?

freakin moron...

that answers my question earlier whether i should leave the ground in the harness or put it elsewhere if connecting the HU straight to the battery(from your post im assuming leave the ground in the harness)

 

[iceteebone 5,000+ posts]

why would you bother running the negative to the battery, when the best place to connect the power cable in the whole car, IS AT THE BATTERY ASWELL!!!
why didn't you use the original wiring for the ground connection? hmm?

freakin moron...

because there was a ground loop you asshat. also there are so many other devices grounded along with the factory harness ground. it's just as easy to ground it to the battery as the chasis. what would be the purpose of running the power to the battery? the headunit hardly draws any current so the factory power is sufficient

 

[iceteebone 5,000+ posts]

thanks for the info, runnin the internal amp so thats why im interested in all this
that answers my question earlier whether i should leave the ground in the harness or put it elsewhere if connecting the HU straight to the battery(from your post im assuming leave the ground in the harness)

don't listen to him. your better off making sure the ground is good the first time so you don't get a ground loop

 

[BodegaBay 10+ year member]

I agree with Ice on this one. You shouldn't use the factory harness for ground, use a bare metal/chassis spot in the dash.

 

[zachzchw 5,000+ posts]

the headunit, when using the internal amplifier, will draw 15 or more amps.... the stock wiring is probably good for 5 - 7.5amps, so how can you make a stupid statement like that?
clearly you don't even know what you're talking about... lol

What percentage of people do you think take the time to connect their power wire to the battery? I would bet not many people do it.

And yet, you dont hear numerous complaints of any trouble, do you?

Neither do I.

 

[BodegaBay 10+ year member]

Thats not what he's saying though, so how can you agree with him!!!! he's saying to use a cable running back to the battery for ground, but use the stock positive wire!!!

Ok, ok I didn't read him correctly, dont' get bent out of shape. Sorry, I meant to say that one shouldn't use the factory harness for ground. I don't think I'd go to the extreme of routing a separate ground wire to the battery's negative post -- a short ground to the vehicle's chassis would be preferable.

The power wire can come from the factory harness (if the 9835's internal V-drive amp is NOT used) or direct 10ga. to the battery (if the 9835's internal amp IS used).

 

[Y2K SE 10+ year member]

When I installed my Alpine 7894, I took it as a sign that a dedicated power wire from it to the battery was really a good idea when I saw that it had a 20amp fuse on the back, while the fuse on the car for the factory headunit and interior lights was a 15amp.