Question about Car Audio & Video

1 Answer

Stereo amp power supply

I have a 93 jeep and i was wondering if i could run my stereo amp off the power supply for the modem that goes to the car phone instead of going through the firewall to the battery.

Posted by on

  • jerry9364 Mar 11, 2009

    Modem is no longer connected. So it would not be sharing the power. it's a small amp, 150 watts. Hoping to avoid drilling through my firewall, but if i have no other option where is the best place to go through at.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 152 Answers

No I wouldn't share the amp feed. It should be stand alone, with its own fuse.

Yes it is wise to connect directly to the battery, hence through the firewall.

You should purchase an amp wiring kit, matched to the
watts of the amp. It has everything you need to correctly make all of the connections.

Good luck
Aduz

Posted on Mar 11, 2009

  • Arthur Bayne Mar 15, 2009

    I mostly make the penetration on the battery side of the firewall, You may find an existing rubber grommet that will accommodate the wire, or at last resort you'll need to drill a hole.
    Note: before I attempt any drilling I always inspect both sides of the firewall for obstructions and other components that may be accidentally drilled (HVAC duct work, wiring harnesses, exhaust heat shields etc...) I also use a grommet to prevent the sharp metal from cutting the insulation of the wire and causing a short circuit.

    The reason I always power an amp directly from the battery is because, it is a shorter distance that the power has to travel as opposed to the under dash wiring that laces throughout the dash, and it assures me that the complete circuit is of the correct wire gauge. (an amp properly powered will produce better sound quality)

    Another tip, always run the power wires in a separate chase (location) then the signal (speaker) wires, as to avoid the signal wires picking up the resistance given off from the power wires that causes buzzing noise in the speakers.

    Aduz



×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Well i have a 1994 Jeep Cherokee. I switched out this stereo which is a Pioneer DEH-1800. It is installed in the jeep. It recieves power and everything. But nothing is coming out of the speakers. But i am...


First you will need to know if this vehicle has a factory amp. If so you need to find the wire to power it up. If no factory amp you need to test the audio output of the stereo itself.

Aug 22, 2010 | Cherokee Jeep Grand 1994-1995 Radio...

1 Answer

I WAS WONDERING IF YOU COULD HOOK UP THIS AMP WITH A HOUSE STERIO?


sorry, its not feasible, your home stereo and speakers are on AC power while your car amp runs off of DC power.

Aug 20, 2010 | Lightning Audio LA1.300.2 Car Audio...

1 Answer

Stereo wiring on mk4 golf r32? Fitted new stereo bit radio isn't working I Need to know what colour wire to connect to the power supply for the amplified ariel?


12 volt accessory or same wire that goes to red wire on stereo or cigarette lighter.
OR
What is the current draw on amplified aerial ? or are you talking bout electric aerial(up and down automatically ?) If current draw is really low like 500 milliamp or so then hook her up to blue wire (remote output) on back of stereo but REMEMBER this is LOW current and only meant to switch on amps and raise electric aerials etc.If you think amp on aerial is too much for it then run the rem wire to a 12 volt relay and wire it so that when rem triggers and closes the gate will be connecting an accessory wire OR perm 12v wire to aerial power . That way aerial ONLY turns on(POWERS UP) when stereo is on as opposed to other way where aerial will be powered up every time car ign or acc is turned on regardless of whether the stereo is on or not.

Jun 18, 2010 | Car Audio & Video

2 Answers

What am I doing wrong? 94 jeep GCL caska 1605 dvd


OK, HERE IS WHAT I SHOW.
DID U KNOW THEY MAKE AN ADAPTER HARNESS THAT ALLOWS YOU TO PLUG DIRECTLY TO FACTORY HARNESS? NO CUTTING WIRES. THESE ARE AVIL FROM ANY LARGE RETAIL STORE LIKE BEST BUY. PLEASE RATE MY HELP, THANKS!

1994 Jeep Grand Cherokee Car Radio Stereo Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Violet/White
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Orange/Black
Car Stereo Dimmer Wire: Green/Red
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Blue/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Blue
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Orange

Aug 03, 2009 | Car Audio & Video

1 Answer

What are radio codes and do they affect a 93 jeegrand cherokee?


A radio code is when the stereo loses the constant power and goes into lock out , then you will need a special number code to unlock it. For that year im pretty sure they did not have the feature

Jul 11, 2009 | Car Audio & Video

1 Answer

Radio prob


is it a factory or aftermarket stereo system. if it is an aftermarkek system you are going to have to run your own fused power source from the battery to the amp

Jan 04, 2009 | 1995 Jeep Grand Cherokee

1 Answer

Need specs and wiring options


Eclipse 36401 eclipse%20pa36401.jpg
  • 105W x 4 Channel Max. Power Output at 2o.gif Stereo
  • 60W x 4 Channel 0.1% THD at 2o.gif Stereo @13.8V (RMS Continuous Power)
  • 40W x 4 Channel 0.1% THD at 4o.gif Stereo @13.8V (RMS Continuous Power)
  • ChannelFlex Crossover
  • Adjustable High-Pass Frequency (50-200Hz, L/R Independent)
  • Low-Pass Frequency (120Hz)
  • Adjustable Bass-Boost Level (45Hz, 0-9dB, F/R Separate)
  • High-Current, High-Speed Output Devices
  • High-Efficiency, High-Energy MOS-FET Power Supply
  • Audiophile Grade Component Selection
  • Intelligent 7-Way Discrete Protection Circuitry
  • Noise Reduction with Low Distortion & Ultra-Low Negative Feedback
  • High-Level Input - Add on Capability
  • Epoxy Composite PCB
  • 2o.gif Stable Design
Each 6 1/2" speaker will see 40 Watts
Each 6"x9" will see 521/2 Watts

Yes your solution is correct. Front wired in stereo, bridge rear.

Dec 29, 2008 | Eclipse Car Audio & Video

2 Answers

Looking for stereo fuse


the stereo fuse is under the hood in fuse box and uses a five or ten amp fuse no fifteens will blow it right up

Nov 21, 2008 | 1992 Jeep Wrangler

1 Answer

Maystar cx475


Ok, I am assuming this is the 600 watt amplifier?

DISCONNECT YOUR BATTERY!!

Supplies needed:
- 8 Gauge power wire (long enough to run from your battery to the amp placement) WITH an inline fuse!!
- Depending on your stereo (if it has amp pre-outs or not) you will either need RCA cables (long enough to reach your amp from your stereo) OR a Line-Out converter AND RCA cables.
- The power lead that connects to your "REMOTE" line on your stereo (long enough to reach from amp to stereo - usually blue)
- A good ground wire ( long enough to reach a metal part of your car from the amp)

======================================================================
STEP 1: Find a spot to run the power wire from your battery - through your firewall and into your car - and then to your amp. (DO NOT CONNECT IT TO ANYTHING YET)
STEP 2: Remove your car stereo and look to see if you have PRE-AMP outs (RCA connectors for an amp on the rear of the unit)
A- if you do, GREAT.. proceed to step 3
B- if you don't.. you will need to get a LINE-OUT CONVERTER - what this does is converts the higher signals from your standard wires on your radio, to RCA style wires to connect to your amp.
B2- you will also want to buy a wiring harness kit for your stereo, unless you want to hack away at your factory wires.. (not recommended) - connect the harness kit to your factory wire harness, wire in your leads for the output converter, and run the other end to your stereo.*
*you will need to know which wires run to the speakers you plan to power with the amplifier
B3 - once the converter is properly connected - proceed to step 3
STEP 3: Plug the RCA cables into the stereo or converter, and run them properly from behind your radio to the amp but DO NOT CONNECT THEM YET.
STEP 4: Connect the REMOTE wire from your stereo to the same wire for your amp . (this enables the amp to turn on/off with your radio.. otherwise.. you will have alot of dead batteries)
STEP 5: re-install your stereo into the car.
STEP 6: Connect the RCA speakers into the INPUTS on your amp
STEP 7: Connect the REMOTE wire to your amp.
STEP 8: Connect the speaker wire from the OUTPUTS on your amp to the speakers you wish to power
STEP 9: Connect the POWER CABLE to the amp PROPERLY
STEP 10: Connect the GROUND CABLE to a metal part of your car (sheet metal, not just a bolt)
STEP 11: Connect the POWER CABLE to the battery cable
STEP 12: Re-connect your Battery
STEP 13: Start your car, and test your radio.

If you have any issues from here.. you need to re-check all of your connections.

Oct 12, 2008 | Car Audio & Video

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

89 people viewed this question

Ask a Question

Usually answered in minutes!

Top Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4807 Answers

yadayada
yadayada

Level 3 Expert

70365 Answers

The Knight
The Knight

Level 3 Expert

72640 Answers

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

Answer questions

Manuals & User Guides

Loading...