How do you ground your head unit?

[kidwolf909 10+ year member]

Well, do you ground it right back into the pre-existing harness, or do you run a chassis ground?

I ran mine into the harness on my CD7200mkII and I think that's the reason I'm getting alt whine... Lemme know what you think.

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[ultimate157 5,000+ posts]

I've always used factory harness grounds - haven't had an issue yet.

 

[bonesninja 5,000+ posts]

i ALWAYs use the chassic ground that comes with Alpine units (the only headunits i use) i either find a screw inside the dash that is in grounded metal already or i create a ground with a sheet metal screw

 

[morgans432 10+ year member]

Grounded mine to bare metal just in case of the dreaded pioneer whine

 

[meade916 10+ year member]

your best bet is to ground the deck at the same spot you grounded your amps at....especially if your having noise issues.

 

[ProgMtl 10+ year member]

Have always used the pre existing vehicle harness (never any issues)...installed my KDC-X991 this morning and I now have a tiny bit of Alt. whine...so I'll be redoing the ground to chassis in the very near future.

Morgans432...how's the HU?

 

[morgans432 10+ year member]

its going strong, not sure which one I bought from you but all my hu are good haha

 

[ProgMtl 10+ year member]

I believe you bought the 680

 

[kidwolf909 10+ year member]

your best bet is to ground the deck at the same spot you grounded your amps at....especially if your having noise issues.

Would be a bit of a problem. Deck is up front, amps are grounded wayyyyy out back. Trying not gonna run it all the way back, i'd have to tear my whole car apart, which is a whole lot for a little ground.

 

[morgans432 10+ year member]

yeah it works great my brother is loving it in his car was a birthday present for him

 

[ProgMtl 10+ year member]

glad to hear you're liking it

 

[morgans432 10+ year member]

Would be a bit of a problem. Deck is up front, amps are grounded wayyyyy out back. Trying not gonna run it all the way back, i'd have to tear my whole car apart, which is a whole lot for a little ground.

I grounded mine on the side by the door where all of my fuses are. I'm sure you can run it into the engine bay and ground it out there if you needed. you would have to crimp more wire onto the existing to make it reach.

 

[ProgMtl 10+ year member]

I'm going to find someplace below the HU on the firewall...just a pain to get inside the dash of my truck

 

[MyFartsStink 10+ year member]

Have you grounded your amps correctly? I mean have you checked it with a dmm to make sure they are a solid ground? Use star washers for them. And do the same for the headunit.

 

[ProgMtl 10+ year member]

Amps are grounded VERY well...star washers and bolts...even dremeled the paint from both sides.

Ground issue came in to play with the new HU install this morning...it's very faint...may even be that my alternator was working overtime since I had the dome lights on for an hour while I was playing...has happened before and then went away on it's own.