Stereo randomly turns off
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Mountain Pass
Joined: Jul 2012
Posts: 149
Likes: 21
From: Citrus Heights , CA
Stereo randomly turns off
Old aftermarket stereo was randomly turning off…
so I bought a replacement aftermarket…
found the ground wire was questionable, and the hot wire was super questionable as well. Replaced both.
the ACC/keyed ignition wire I simply cut and attached to the new wires.
at first I assumed I didn’t ground the new ground wire well.
its straight from back of stereo to body ground at the same point I have an engine to body ground… so leaning toward that not being the issue.
soooo guessing the ACC is questionable.
how would you test that?
it turns off while driving at all sorts of random times… when hitting some bumps but not all… when shifting gears - but not the same gears/rpm/speed…
any thoughts/sugestions?
lazy me is considering bypassing the ACC keyed and just tossing a hot wire to a switch and just switch on when I want…. (Terrible idea? Lazy “fix”?)
so I bought a replacement aftermarket…
found the ground wire was questionable, and the hot wire was super questionable as well. Replaced both.
the ACC/keyed ignition wire I simply cut and attached to the new wires.
at first I assumed I didn’t ground the new ground wire well.
its straight from back of stereo to body ground at the same point I have an engine to body ground… so leaning toward that not being the issue.
soooo guessing the ACC is questionable.
how would you test that?
it turns off while driving at all sorts of random times… when hitting some bumps but not all… when shifting gears - but not the same gears/rpm/speed…
any thoughts/sugestions?
lazy me is considering bypassing the ACC keyed and just tossing a hot wire to a switch and just switch on when I want…. (Terrible idea? Lazy “fix”?)
Hotshot
Joined: Feb 2004
Posts: 10,785
Likes: 2,595
From: The Shenandoah Valley
This on your '74 I guess. You mention the "the hot wire was super questionable". My Pioneer will sometimes go off in the ACC position, but has not done so in the RUN position. It seems like it is just if I wiggle the key in ACC. Also, because it remembers stations, mine has both a keyed power wire ... and a constant hot all the time wire that is "hot always".
I have considered doing exactly as you describe, one fused hot wire to the radio, catching both the keyed wire and the memory always hot, but rather than a separate switch, just depending on "ME" turning the radio off. One could add a switch, but just on the leg feeding the radio on/off power feed, leaving the memory leg constant.
I have considered doing exactly as you describe, one fused hot wire to the radio, catching both the keyed wire and the memory always hot, but rather than a separate switch, just depending on "ME" turning the radio off. One could add a switch, but just on the leg feeding the radio on/off power feed, leaving the memory leg constant.
FTE Legend
Joined: Nov 2015
Posts: 30,886
Likes: 4,119
From: Angier, NC
Do you think it could be the IGN switch it's self?
Being it happens at different times but bumps dont seam to make it cut off I say IGN switch.
You ask why I say this?
What if it makes a weak connection and the radio works but because it is weak it heats up and breaks connection and shuts off?
Did I read it will come back on after a time? If so then it cools off and makes a weak connection again and start all over again.
Ever have an old head light switch heat up and trip the breaker and then cool and reset?
Thinking the same thing with the IGN switch and no the key part the electrical part.
Dave ----
Being it happens at different times but bumps dont seam to make it cut off I say IGN switch.
You ask why I say this?
What if it makes a weak connection and the radio works but because it is weak it heats up and breaks connection and shuts off?
Did I read it will come back on after a time? If so then it cools off and makes a weak connection again and start all over again.
Ever have an old head light switch heat up and trip the breaker and then cool and reset?
Thinking the same thing with the IGN switch and no the key part the electrical part.
Dave ----
Thread Starter
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Mountain Pass
Joined: Jul 2012
Posts: 149
Likes: 21
From: Citrus Heights , CA
I'm betting you're right.
Curious - loose wire? add some dye electric grease to the connector? Just simply replace the whole thing? (if I do, then I've gotta carry two keys... one for the door and one for the ignition)
Fleet Mechanic
Joined: Mar 2013
Posts: 1,661
Likes: 1,062
From: Montana
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