+,-, acc, what else for head unit?

Home / the12volt's Install Bay / Car Audio / +,-, acc, what else for head unit? (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

97Avalonxls

Copper - Posts: 115

Joined: November 17, 2004

Location: United States

Posted: May 18, 2005 at 12:06 PM / IP Logged

This thread is aimed at determining the negative effects of only hooking up these three wire to my HU. i have a short somewhere in my ride and it has, I am ashamed to admit, become something of a hack job (three different shops in two cities, some friends with more zeal than skill, and my own slowly learning hands touching things) so I want strip all the audio related wires and then take my 12+ from the batt, fused of course, and go to the HU.

My hu, a clarion drx9575z has an eight wire harness, but aside from the hot constant, switched and ground, do I need any of the others?

I am going to also have my eq and sirius hooked up the same way, but they only ask for the three. any thoughts

Poormanq45

Silver - Posts: 597

Joined: October 27, 2004

Location: United States

Posted: May 18, 2005 at 12:31 PM / IP Logged

Normally the HU will have two hots, one constant and one accesory, and one negative. Sometimes it will have a dedicated ground wire, but I've seen a few HUs that use the chassis as the ground.

Asmodeus

Silver - Posts: 393

Joined: September 02, 2004

Location: United States

Posted: May 18, 2005 at 1:49 PM / IP Logged

You can hook it up with just those three wires...It will only power on....Make sure the other wires dont touch one another though....Tape them up...It wont hurt the unit at all...You can get you ACC power from the ignition harness....And ground is pretty self explanitory..

+,-, acc, what else for head unit? -- posted image.

Making the World A Louder Place

Poormanq45

Silver - Posts: 597

Joined: October 27, 2004

Location: United States

Posted: May 18, 2005 at 2:27 PM / IP Logged

Also, if you want it to power on with the ignition you'll need to put a relay on one of the switched wires and then connect it to the battery and HU. That'll turn it on off with the Ignition without overloading the stock wiring.

Note that the stock wiring is ~18 or 20 awg in most vehicles. This usually isn't enough to even power a Head Unit.

mobile1

Silver - Posts: 479

Joined: February 23, 2004

Location: United States

Posted: May 18, 2005 at 9:52 PM / IP Logged

or go to the ignition harness like previously stated.

Poormanq45

Silver - Posts: 597

Joined: October 27, 2004

Location: United States

Posted: May 18, 2005 at 10:08 PM / IP Logged

Like I said, the ignition harness wire is a little small to be running an aftermarket deck on.

KarTuneMan

Platinum - Posts: 7,056

This member has made a donation to the12volt.com. Click here for more info.

This member consistently provides reliable information

Joined: December 14, 2004

Location: Isle Of Man

Posted: May 19, 2005 at 5:22 AM / IP Logged

Poormanq45 wrote:

Like I said, the ignition harness wire is a little small to be running an aftermarket deck on.

WHAT? your kidding, rite?

Poormanq45

Silver - Posts: 597

Joined: October 27, 2004

Location: United States

Posted: May 19, 2005 at 12:29 PM / IP Logged

NOpe. Most wires in the ignition controlled harness are only 18 or 20 awg wire. What you're probably thinking of is the larger wire that comes AFTER the ignition relay which controls the starter

mobile1

Silver - Posts: 479

Joined: February 23, 2004

Location: United States

Posted: May 22, 2005 at 1:37 AM / IP Logged

The ignition harness is the group of wires coming out of the key cylinder. Most vehicles these wires can take 40 - 50 amps of current. there are very few vehicles that can't take that much. the smallest i've ever seen has been 20 amps. and even then you're still ok for a deck.

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

+,-, acc, what else for head unit?

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.