Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.
Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the environmental conditions, such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals.
Associated circuit protection, control, and distribution devices within a building's wiring system are subject to voltage, current, and functional specifications. Wiring safety codes vary by locality, country, or region. The International Electrotechnical Commission (IEC) is attempting to harmonise wiring standards among member countries, but significant variations in design and installation requirements still exist.

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  1. HCCA122

    What size wire? Seriously...

    The Orion HCCA 3000.1DSPLX requires three 300A fuses. Does this mean I need wiring that can sustain 900A of current? (or does this mean I need three 100A fuses?) I have never worked with amps that have more than one power input. I also have to decide on what amp(s) I will be using for my...
  2. C

    Subaru & Harman Kardon amp sub speaker install issues, please help.

    2022 Subaru WRX Limited w/ the Harman Kardon stereo Autoharnesshouse 7881 30 pin Audio Control LC2i Pro Stinger MT15001 Kicker 44DCWC102 Dual 10" Comp C Woofer Box Infinity Reference Ref-933ix 6x9s Infinity Reference Ref-3032cfx 3.5s The HK system as it came was okay, enough for me I thought...
  3. HCCA122

    This stuff any good, worth the money?

  4. johnnyb_aussie

    Mekede M6 Pro 2k + Hertz speakers + JBL 5ch = hum/whine ??? Help please

    Installed the m6pro plus 2k, was super happy with it... until i installed hertz speakers all round and jbl 5ch amp. There is feedback hum/whine through the speakers. This hum/whine was is not present if I connect the speakers to the headunit directly using the headunit built in amp. (ran this...
  5. NatoXemus

    Daisy chain front and rear speakers, or connect at the Amp?

    I'm adding aftermarket rear speakers to a 4 channel amp, sub (mono bridged), and 2 front door speakers. My question is, is it safe to chain the front and rear speakers - so rear positive to front positive, rear negative to front negative, front pos/neg to amp channels? Or should I just play it...
  6. E

    Engine whine - Desperately need help

    I've posted about this topic a couple times already, but I have yet to find a solution. I installed an after market amplifier to power my mids and highs. I already have a sub amp that isn't having the same issues. My stereo is a JVC KW-M780BT. The amplifier powering the whine is a Infinity...
  7. A

    High pitched noise coming from speaker that raises in pitch with raising rpm.

    Hello, so my front right tweeter has started making a high pitch constant tone that will increase in pitch as the rpm’s are increased. Sometimes when I go over a bump the sound will stop until I hit another bump and it resumes. Correction of the issue when going over bumps makes me think...
  8. S

    New at this please any help is appreciated. Upgrade from 1 to 2 15" 4 ohm dvc sub wiring and right ohm load

    Hello I'm happy to have came across this forum as I'm hoping someone will help with this little bit of confusion I'm having and maybe save me some money in the long run. Background I had went to get initial install from local shop. I had wanted something temporary and allowed me to later on...
  9. agreater

    Wiring for 2 subs

    I am installing 2 Rockford 15s 1 is 2 ohm DVC and 1 is 4 ohm DVC I want to wire them up to a 1 or 2 ohm load. Does any one have ideas for this? Thank you Agreater
  10. B

    Question about wiring with ignition and switch 12+ power

    So I’m replacing my cars radio, and in the user manual for the wiring of the new radio, it says to test the radio (before installation) it says the ACC wire and the 12+ V wire should touch the positive pole of the battery and the ground wire should touch the negative pole in order to turn on...
  11. J

    What am I missing for my sub/amp installation

    Hello everyone, I am pretty new to installing subs and amps so Im looking to make sure I am going in the right direction and am not forgetting anything I need. This set up is going into my 1992 civic vx(EG hatch), I have a JL 13W3v3 4ohm 600 watt subwoofer and a stage 2 box for it both linked...
  12. Brassmonkey

    Advice and help - could it be head unit?

    Looking for some help - recently got a 1988 Toyota Land Cruiser - i think I’m 3rd or 4th owner. This is what I know Upon arrival I could see that there was an aftermarket Kenwood KDC-HD545U Head Unit installed - I believe it’s a 2010 model. 4 speakers two fronts two rears And abandoned wires...
  13. BrentJones

    21 Kia seltos wiring inquiry

    21 Kia Seltos Objective - Change the 4 stock speakers, add 2 amps, and sub. Would like to use the factory wiring harness’ in the doors to the speakers. Tap in to the main harness inside the cabin to run to the converter>amps>then back. Inquiry - The front door speakers are set up in a...
  14. C

    Sub wiring via rear speakers vs RCA

    Hi Everyone, I have an active JL Audio sub (ACS112LG-TW1) wired via rear speakers in my VW Tiguan. The original head unit did not have the RCA connectors, therefore, wiring via the rear speakers was the easiest option. This setup seems to have the drawback that it often requires adjusting the...
  15. R

    Wire door/deck speakers to amp?

    Running 4 pioneer 6x8" (75w rms ea) (2) in my front doors and (2) in the back deck powered by a pioneer sphBT10 50w. I also built a board and placed (3) 6.5" prv's (100w rms ea) in my back seat (seats lay down for trunk access). When I had my prv's connected to a taramps ts400x4 4 ch amp, it was...
  16. DonJohnson

    Car Stereo wiring help

    Hey guys, I am attempting to swap out old aftermarket stereo with new stereo. The existing wiring is a bit of a nightmare. I am not sure what the wires heading off to the right and left are for. Perhaps the wire to the right goes to battery for constant power but what are the wires going...
  17. S

    2010 Lincoln MKX Crossovers?

    Good Morning everyone, I have a 2010 Lincoln MKX with the factory THX audio and factory amplifier. My front doors are factory component speakers and I am replacing them with Morel Tempo Ultra 572 component speakers. In the door, there are no factory crossovers, but I do believe that the amp is...
  18. G

    Big 3 + to alt fuse?

    I know there are some threads on this already but I’m looking for a specific answer regarding my setup, I’m doing a big 3 upgrade with 4 awg wire, should I fuse the battery to alternator wire, and what size/type considering 4 awg, also I’m not replacing factory wiring just adding to it, any help...
  19. L

    Radio will not power

    Ok so I have a 2007 Jeep Liberty and I finally got the chance to get a new radio. I bought a boss audio system elite from auto zone and I got everything else I need. The wiring harness and such, did all the **** and connected the wires to the color it was supposed to go to and it will not power...
  20. E

    Mg marvel r bose amp wiring help

    Hi. I will be trying to hook up an amp and subwoofer in the Mg marvel r with the Bose sound system. Does anyone happen to know which color the +- on left and right rear speaker is?
  21. Jakezacb

    Need clarification with capacitor wiring

    Let me start with some back story. The photo attached is of my 2x 10" kicker subwoofers, 600 watt kicker amp, and a 2.5F capacitor. This went in my 2013 mini cooper and worked amazingly well for the year i had it in there. I have since sold the coop as multiple, EXPENSIVE, problems arose but i...
  22. M

    Should I use the double power input my amp brought?

    So first off I’m extremely new to anything in the electrical/sound world and all I’ve done is off intuition and very small amounts of verification from a friend who works with sound equipment occasionally. Now on to the main topic. I used to have a 1500W Machete amp powering a Machete M12v2D2...
  23. 8Wetsounds Rev 10”

    8Wetsounds Rev 10”

  24. 2

    Speakers not working - Help!

    Hello, I bought this truck and all 4 door speakers don't seem to work. My small speakers on top of the dash do work, but I noticed later on, that the door speakers weren't working. I know absolutely nothing about vehicle wiring so maybe one of you can help me out. Thank you in advance! I'm...
  25. C

    Wiring a DVC as one ohm.

    I have a mono amp, with two outputs (one channel), and a dual voice coil 2 ohm subwoofer. (Which I assume means each voice coil is 2 ohms.) I was looking at this wiring diagram to make it act as one ohm, and was wondering if this affected the power I can put to it? I want it to be one ohm so my...
  26. Tylerrr01

    Blown and Melted Fuse Block

    For starters here is my setup Subwoofers: 2 10” Kicker Comp R’s 800 watts (peak) per sub 400 watts (rms) per sub Amp: Lanzar Heritage Amp 2000 watt 2-channel bridgeable Ran with a 9.5mm power wire which I believe is 4 gauge. So my issue is whenever I listen to music with the subs if I play...
  27. J

    Hardwiring an inverter into an audio system circuit?

    Whenever I can get my hands on a 2022 Subaru BRZ, I plan on installing a custom audio system before I drive it from sea to shining sea next summer (moving from New Hampshire to Arizona). I would like to hardwire an inverter inside, to have that added security and convenience for the trip (and...
  28. H

    Should i use preamp Outputs??

    I'm currently in the process of installing an avh 2300nex into my car and just removed the factory stereo. but I'm confused to if I should use the pre amp out puts or no, because the speaker do work if I connect the power supple wires to the stereo and the seem fine.... I don't wanna go into too...
  29. J

    Help with simple 12V, Ground, & Remote Wire Connections

    I have no idea how I am supposed to put my wires in here (third pic) with that metal thing that seems to be in the way. Is there a certain connector or adapter I need? If so please help and tell me what I need to get? This is the only help I need. Thank you.
  30. R

    Kenwood excelsior KDC-X704 wiring issues

    I decided to wire my old kenwood into an older suburban, after having a few hiccups, I finally get the radio on, but the only thing it does is say “miswiring, check wiring, then power on” could it say that because I didn’t plug in the antenna cable? Or did I mess something up? Tomorrow I’m gonna...
  31. Jimbo1227

    High output alternator help

    What’s up all. I installed a mechman 370 on my f150. Now I’m getting a charging system light and my headlights are flickering even when radio and everything are off. My voltage also doesn’t stay steady even at idle it goes up and down from about 13.3 to 15.4. No idea what the hell it is. I’ve...
  32. D


    about 6 months ago I replaced the speakers in my 04 ram 3500. and now only one of them works i took the speakers out and there's still power too them and i tried putting it back in and rewiring it but still nothing so i am wondering what could be causing those 3 to have stopped working they have...
  33. A

    Alpine Single Din vs Double Din Connecter

    Hey there everyone, Have a dumb question and wanted to get some help before I purchased anything. I currently have a single din CDE-164BT (https://www.crutchfield.com/S-9KSVbGGeQ3l/p_500CDE164B/Alpine-CDE-164BT.html) installed in my 93 MR2 Turbo. Purchased the correct harness and everything is...
  34. Tim21Va

    1 Ohm or 2 Ohm load? Confused.

    I've been trying to help a friend hook up some DVC 2-Ohm CVX's to a mono amp for the past 2 weeks, but it seems that old amp isnt working(one pictured MTX 1500..old Jackhammer amp) so I am going to use my old amp, T-1500bdcp Rockford Power that used to be hooked up to the subs. Here is my...
  35. N

    installation help

    this is what i’m working with! i’m not sure how to wire it up to get the right ohms or anything along those lines can someone help me out by answering these questions? will this amp support the sub? is the capisitor going to effect my sub or be beneficial? can you draw a wiring diagram to send...
  36. B

    Help with dvc sub wiring

    I have a lanzar vibe 800 watt amp with four channels, the lowest impedance is 2 ohm, is bridgeable at 4 ohms. The subs are 2 4ohm dvc IX-12s. I am looking for the best sound quality and efficiency. Any help appreciated!
  37. pshutt

    2017 Ford Sony Rear Sub Upgrade

    Hi. I recently bought a Rockville USS10 to upgrade the bass in my 2017 Escape Titanium with the Sony Sound System and SYNC3. I got it connected to the battery and to the ground, but I do not know exactly what to do to get the sub connected to the stock media player. All I want is to get the new...
  38. David88

    Installing Component Speakers - Genesis Coupe

    Hey all. I'm not experienced with audio equipment and I've come across some issues with my installation process. Car : 2014 Hyundai Genesis Coupe Rspec 3.8L (Without upgraded sound from factory) Head Unit: Sony XAV-AX1000 Mono Amp: Phoenix Gold d.1000 Subwoofers: Phoenix Gold 12in 500 watt RMS...
  39. E

    Radio goes off at high volume

    Hey guys, I just installed a new Kenwood Bt778Hd head unit in my 1993 Trans Am. When the car is in accessory mode and not running, I can turn the volume up as loud as I want with no issue. However, when the car is running, If i play it too loud , after a minute or 2, all audio will go off but...
  40. T

    HELP! 2010 Subaru legacy head unit wiring

    So I got an aftermarket stereo for my 2010 Subaru legacy, the harness adapter it came with is a 14 pin, and the one that's already on the car looks like a 16 pin. I'm trying to figure out what the best way to wire in the new head unit would be. Do I just cut the wires and try to connect them to...