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View Full Version : volume goes up and down unintentionally



Navy guy
03-26-2008, 01:04 AM
it seems like everyday im on the car when i'm listening to music the volume just goes up or down dramatically.

i dont know what the problem could be. HU problem??? i have no friggin clue


can someone help

hoxie08
03-26-2008, 01:06 AM
my buddies head unit did this to him. no clue what it was either.

Supergumby5000
03-26-2008, 01:07 AM
just by itself? are you sure its just by itself, or does it fluxuate with the RPM's your vehicle is running at? go turn your stereo and romp on the pedal in neutral and see if it fluxuates with the RPM's

could be an alternator issue if this is the case

Navy guy
04-04-2008, 05:19 PM
just by itself? are you sure its just by itself, or does it fluxuate with the RPM's your vehicle is running at? go turn your stereo and romp on the pedal in neutral and see if it fluxuates with the RPM's

could be an alternator issue if this is the case

yes, just by itself. and i've notice that the problem only occurs when the vehicle is moving. i went to CC and they told me they have no idea what the problem could be.

caraudio experts what could be the problem?????????????????????????

mcsoul
04-04-2008, 05:43 PM
do you have an amp or amps? If you do not have an amplifier, then it is likely
the head unit. Go have the wiring checked by another installer, if it is good
then replace the head unit.

If you do have amps, you need a friend with amps lying around for you to test with
(if you lived in dfw I could hook you up for a few days but.. you don't).

Do you have a sub(s) with it's own amp? If so is it stable?

Navy guy
04-05-2008, 01:33 AM
do you have an amp or amps? If you do not have an amplifier, then it is likely
the head unit. Go have the wiring checked by another installer, if it is good
then replace the head unit.

If you do have amps, you need a friend with amps lying around for you to test with
(if you lived in dfw I could hook you up for a few days but.. you don't).

Do you have a sub(s) with it's own amp? If so is it stable?


i got 2 12's in the back with their own amp. and im not sure what "stable" means.
....so maybe the problem could be the amp?

i dont know if this helps: 2 alpine type E 12" ( 4 ohms)
ALPINE MRP-M850 amp

dman4486
04-05-2008, 01:36 AM
what brand hu?

pioneers have auto leveling options, where road noise/engine noise will make the hu increase volume....this can be turned off

Navy guy
04-05-2008, 01:44 AM
what brand hu?

pioneers have auto leveling options, where road noise/engine noise will make the hu increase volume....this can be turned off


actually i do have a pioneer. DEH-P7700MP
i dont think it has those kinds of options tho

Scoobydoo
04-05-2008, 01:45 AM
sitting on the remote?

dman4486
04-05-2008, 01:46 AM
actually i do have a pioneer. DEH-P7700MP
i dont think it has those kinds of options tho

my deh-p7500mp has it so i would assume yours has it.....i do not remember what it is called though, but it is in the same menu with audio controls

skadude016
04-05-2008, 01:52 AM
there are actually some head units. that will lower the volume when slowing down or at rest. and some that will raise the volume when going faster. its a setting im sure you can turn off. if that is the deal

dman4486
04-05-2008, 01:52 AM
it is called ASL (audio sound leveler)

Navy guy
04-05-2008, 01:54 AM
it is called ASL (audio sound leveler)

ok i know what your talking 'bout.
should i just go ahead and check if thats turned on?

dman4486
04-05-2008, 01:55 AM
ok i know what your talking 'bout.
should i just go ahead and check if thats turned on?

no...just go ahead and turn it off:D

skadude016
04-05-2008, 01:55 AM
ok i know what your talking 'bout.
should i just go ahead and check if thats turned on?

naw leave it on. its a fun feature

dman4486
04-05-2008, 01:57 AM
naw leave it on. its a fun feature

:rolleyes:

NoobieAudio
04-05-2008, 01:57 AM
i had that same problem but with my home stereo. if i cranked the volume knob too hard then it would change up and down on its own until i gave is a gentle tweak on the knob

skadude016
04-05-2008, 01:57 AM
:rolleyes:

silence I keel you

dman4486
04-05-2008, 01:58 AM
silence I keel you

:laugh:

edit::crying:

dman4486
04-05-2008, 01:58 AM
i had that same problem but with my home stereo. if i cranked the volume knob too hard then it would change up and down on its own until i gave is a gentle tweak on the knob

dirty pot...different problem