Question about Denon AVR-3805 Receiver

2 Answers

Fitting car speakers

How do you connect 6x9 car speakers to a head unit?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 158 Answers
Re: fitting car speakers

If the speaker wiring has already been done by the car maker,simply connect them to the" RCA audio in" jacks. (red wire IN red jack ,black wire IN black jack.)
connect them in the same way to the AUX IN .Now the speakers will play via the car stereos AUX selection only.
( the RCA jacks will be located at back of head unit.)

Posted on May 20, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,067 Answers
Re: fitting car speakers

Direct to front s out from sterio have to match up know were your old ones go a wire harness for your car says all labeled nice were to go weird colers in such ok get that match it up to back of head unit wireing it direct ok postive on + negitive on - ok its notto hard if u dont know colers u call deler they tell u the coler codes for your car write it down ok

Posted on Jan 22, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Will the Aux. Input port also work as a earphone system to listen to any audio. This system is in a convertible & this option would be nice going down the down.

aux input is exactly that an input system ( mic , other input device etc)
you need a head phone socket for what you want to do ( output socket)

Jul 05, 2015 | Sony Cdx-gt56ui In Dash Car Cd Player W...

1 Answer

I don't no what speakers work with my fisher mc-723

The speaker output connections on this stereo system unit are called RCA...named from the inventing company. Computer speakers use what is called a "mini-plug" and as you've found out, the two are not the same.

I would suggest checking at your local Goodwill or Salvation Army store for an inexpensive pair of speakers with the proper RCA connection you need. Second choice is the local Radio Shack store...tell them you need speakers with RCA type connections and you will also need two RCA to RCA speaker wires to make the connection needed.

Nov 05, 2013 | Fisher Model Mc-723 Studio Standard Audio...

1 Answer

Car speaker sizes

6 x 9 Speakers Should fit in the Mounting space here. That Center hole is not used unless you have a Complete Surround System Installed.

Jan 01, 2009 | Audio & Video Receivers

1 Answer

I have no sound from my car speakers

Is it just a head unit typr receiver or is there am amp connected to it?

Jun 07, 2008 | Audio & Video Receivers

1 Answer

Need help

Have you connected an extra pair of speakers?. (Thereby loading the amp stage beyond it's capacity)
Are the speakers connected to the unit the original ones the system came with or different? ( Speaker impedance, usually displayed at the back of the speaker cabinet must not be less than amp's specifications....6 ohms, 8 ohms)
If you're driving the unit excessively you're lucky this piece is equipped with protect mode, else your speakers and amp would have been fried by now.
One last possibility comes to mind: High volume causes vibration causing loosely fitted mains plug to rattle in wall socket calling "protect" due to improper feed voltage. Move the unit to another wall socket and ensure a tight fit into mains receptacle.

May 20, 2008 | Sony STR-DE197 Receiver

1 Answer

My car amp works produces distorded noise . As I plug in the rca cables i noticed that if just the tip of the connector touches i get a good sound but if i insert the whole connector it becomes distorded...

You have a grounding issue.

The RCA inputs of the amp are many times NOT tied to chassis ( the chassis of the car ) ground.

Same goes for the RCA outputs of your head unit.

The speaker outputs of your amp SHOULD NOT EVER be tied to chassis ground.

  • make sure that no speaker wire from the amplifier is touching or attached to ground.
  • Make sure that your amplifier ground (GND )( of the 3 power inputs.....GND, +12V, Rem) is securely mounted to a bare metal spot on the frame. Best practice is to have the amp GND, and the head unit GND at the exact same physical point.
  • Make sure that your RCA cable shield ( not the center tip, but the part around it ) is not touching the chassis.
  • Make sure that you have not nicked the wire while installing it and are accidentally getting a connection to the frame of the car.
  • Make sure that the head unit is grounded properly.
  • IF for some reason you have an equalizer between the head unit and the amplifier, make sure it has its own switching power supply INSIDE the EQ.
Bad grounds are a pain to of luck....Rob

Mar 17, 2008 | Audio & Video Receivers

1 Answer

Auto amplifier

It depends on if you want it to be able to play really loud and really clear. The deck will probably drive them pretty good on its own but when you really crank on some head decks the sound can start distortring.
Wheres the sub it the package?
Get a less powerfull, 50 Watt X4, amp and get a decent sub with a mono amp or they have all in one 4.1 channel amps. To drive the whole system and keep it easy.
Have fun


Mar 11, 2008 | Audio & Video Receivers

1 Answer

How do i install a subwoofer and amplifier to an exhisting car audio system


The basic would be to wire the sub amp to your batteries with the trigger/remote wire powered by your car stereo/head unit. When your head unit is turned on it will in turn power up the sub amp. Of course the sub woofer need to be wired to the amp. For the signal/audio wiring, normally, the head unit has a stereo RCA female connectors at the rear intended to be connected to external amps through a pair of shielded/audio cable terminated both ends with RCA males. Some units have a special RCA specifically for subs. Most eternal amps also uses RCA for their inputs.

If the existing car audio system has already an external amp and your plan is to add on to this, the audio/signal from the head unit could be split to provide both for the existing and the new sub amp.

If the existing car audio does not have an external amp and their are no RCA connectors at the rear of the head unit, it is still possible to connect an external/add on amp by using an adapter that connects to the speaker wires of the head unit and converting it out to line level (through RCAs) appropriate for the input of the amp.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information. it would also be nice if you can post brand/model of your head unit and intended sub amp.

Good luck and kind regards.

Jan 23, 2008 | Audio & Video Receivers

Not finding what you are looking for?
Denon AVR-3805 Receiver Logo

125 people viewed this question

Ask a Question

Usually answered in minutes!

Top Denon Audio & Video Receivers Experts


Level 2 Expert

49 Answers


Level 1 Expert

4 Answers

Tech Leprechaun
Tech Leprechaun

Level 2 Expert

59 Answers

Are you a Denon Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides