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Front Door Speakers Not Working

aussietroy

By aussietroy,
in Car Audio & Electrical

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aussietroy Proficient

aussietroy

Posted
Posted

ok so last week i decided to wire up my amp and sub.

so i setup the sub without a problem

last night i decided to wire my front speakers (and tweeters) to my amp

so i cut the wire under the dash as it came out of the back of the head unit, so now i had a wire going to each speaker.

so i soldered new wires to them and run it to the boot, plugged it into the amp and .... nothing from the front ...

i just dont see how ive messed it up ... so i decided to turn to the trustworthy people of SAU :(

any ideas

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Carbon 34 Grand Master

Carbon 34

Posted
Posted
ok so last week i decided to wire up my amp and sub.

so i setup the sub without a problem

last night i decided to wire my front speakers (and tweeters) to my amp

so i cut the wire under the dash as it came out of the back of the head unit, so now i had a wire going to each speaker.

so i soldered new wires to them and run it to the boot, plugged it into the amp and .... nothing from the front ...

i just dont see how ive messed it up ... so i decided to turn to the trustworthy people of SAU ;)

any ideas

fader from front to rear ? faded to the back not front

wrong wires used?

factory amps? bypass ?

bad crossover wires ?

bad RCA or high level signals

swap the RCA from the sub to the front inputs and see if you have a signal, but be sure to shut off the deck sub out... if it has a crossover built in.

and dont crank it up you just want a sound from them.

could be a lot of things

have you tried to "pop" the speakers from the amp to the doors with a 1.5 volt battery ?, amp not connected?

even with a crossover they will pop when you hit a battery to the wires, with a crossover once the capacitor charges you need to short it out to hear the pop again. PM me for exact details if you don't understand . try not to use anything more then 1.5 volt battery. or it could damage the speakers

I'm assuming your positive you have front speakers in the car ? I've heard that one before.. and found they didn't have any installed..lol

aussietroy Proficient

aussietroy

Posted
  • Author
Posted

worked it out

my head unit has 'restrictions' on output

would only allow the back to go through the amp enless it was in multifunction mode (only Cds) .... soo i bought a spliter and split the back output and connected the rcas to it and it sounds great

now i have another problem .... my tweeters have a static sound in them when music is played and as i rev the car you can hear the alternator whining -.-

i checked the wires and they dont seem to be over any power cords ..

any ideas ?

Carbon 34 Grand Master

Carbon 34

Posted
Posted
You have a ground loop.

Check your amp grounding (especially is it adequate in size, and connected to the body properly).

You running the RCA and power cabling down seperate sides of the car too, right?

Not always the case, if your crossover on the tweeters is too close to a power wire it's picking up A/C ripple.

alternators produce A/C before converting it to D/C a bad alternator can cause it as well

put your ear near other speakers ,does the noise come from all the speakers or just tweets? makes a difference in the fix

the splitter you put in can cause it as well. amp grounds, battery connections dirty, bad engine grounds, computer to close to RCA,the list is huge

some easy reading for you on noise

Noise prevention

and on power in a car

Alternators,batteries, etc

and a site from the GOD of noise reduction, David Navone, I have his big book but you can find it here

Tech Briefs

aussietroy Proficient

aussietroy

Posted
  • Author
Posted

cheers for the help

i moved my ground wire and now the alternator noise is gone

buttt

still get the static buzz in only the tweeters .... tempting just to unplug the tweeter XD

butt

ill just have to take it all apart and either start from scratch or just try and correct anything thats wrong ...

thanks guys

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