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Author Topic: Bose cuts out at random, very odd  (Read 3935 times)
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Blerv
First Gear
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Posts: 8


« on: September 15, 2016, 04:04:52 AM »

I searched around and can't seem to find a similar situation.

At times the stereo works great for the whole drive.

Other times it will cut out every few seconds and the speakers make a bit of a crackling noise.  It sounds like the power is being cut then it turns back on in about half a second.  No dimming of lights on the dash or the head unit.  No surge in power so it's not powertrain related.  It seems to happen more in then morning than in the afternoon but that's the closest to a pattern I can track.

It's very odd. No signs of rats under the hood.  Maybe a failing head unit or amp?  Only 9k miles on the unit but it is 11 years old.

Thanks for any guesses Smiley.
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joeereid
Fifth Gear
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Posts: 1156



« Reply #1 on: September 15, 2016, 11:03:45 AM »

Are you listening to the radio, or playing CDs?
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05 Mica, Sparco Speed, Hard Dog ACE with custom harness bar, Ultrashield 6 point harnesses,FM complete intake, O2 mod, FM downpipe, MR short shifter. Xida 700/400, 3.63 R+P (Spare), 3:9 R+P (current),EWUSA FMIC, Derale hardline delete PS cooler, FM Stage 2 fans w/ OEM connectors, Custom fab IC/Rad ducting, custom cowl intake/heatshield, Ultragauge,Rumblestrip Predictive Lap timer, APR custom mounted rear wing, Custom made streetable/removable front splitter, Run-Cool hood Louvers
SilverMiataRacer
Global Moderator
Fifth Gear
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Posts: 25931



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« Reply #2 on: September 15, 2016, 11:09:58 AM »

When it doubt start with bad connections.  Remove the radio and clean the connections on it and the amps.  Best way for this is to get some TV Tuner Cleaner and spray it onto the contacts and into the plugs and then connect and disconnect them a few times to see what happens.  But if it's the audio dropping and the radio stays on I'm betting amp problem.  Joe has a good point, radio, cds or both.  This would help in your troubleshooting.
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Larry

4 Miatas but who's counting!!   Cool

White Knight    1991 Crystal White   #99 CSP
Silver Bullet     1992 Silverstone     #17 SM2  FM I+ Turbo  (Gone but not forgotten)
Honey B          1992 Sunburst Yellow #99 SM2 J.R. M45
Whooosh         2004 Titanium MazdaSpeed MX5  #403 of 4000
Subie              2006 Steel Gray WRX STi Cobb Stage 2 (Gone but not forgotten)
No name yet    2008 Velocity Yellow Tintcoat Z06 Corvette
No Name yet    2014 Ashen Grey Metallic Camaro 2SS 1LE

“There are only three sports: mountain climbing, bull fighting, and motor racing. All the rest are merely games.”
– Ernest Hemingway
Blerv
First Gear
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Posts: 8


« Reply #3 on: September 15, 2016, 02:43:02 PM »

Are you listening to the radio, or playing CDs?

When it doubt start with bad connections.  Remove the radio and clean the connections on it and the amps.  Best way for this is to get some TV Tuner Cleaner and spray it onto the contacts and into the plugs and then connect and disconnect them a few times to see what happens.  But if it's the audio dropping and the radio stays on I'm betting amp problem.  Joe has a good point, radio, cds or both.  This would help in your troubleshooting.

Thanks for the ideas Smiley.

It doesn't matter on CD's or the radio.  Also it does it regardless of the volume or stereo settings.
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SilverMiataRacer
Global Moderator
Fifth Gear
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Posts: 25931



WWW
« Reply #4 on: September 15, 2016, 02:55:17 PM »

Then I'd go for electrical connectors first.  Pretty cheap to do, not super hard to do.  You want to get something like this.

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Larry

4 Miatas but who's counting!!   Cool

White Knight    1991 Crystal White   #99 CSP
Silver Bullet     1992 Silverstone     #17 SM2  FM I+ Turbo  (Gone but not forgotten)
Honey B          1992 Sunburst Yellow #99 SM2 J.R. M45
Whooosh         2004 Titanium MazdaSpeed MX5  #403 of 4000
Subie              2006 Steel Gray WRX STi Cobb Stage 2 (Gone but not forgotten)
No name yet    2008 Velocity Yellow Tintcoat Z06 Corvette
No Name yet    2014 Ashen Grey Metallic Camaro 2SS 1LE

“There are only three sports: mountain climbing, bull fighting, and motor racing. All the rest are merely games.”
– Ernest Hemingway
joeereid
Fifth Gear
*****
Posts: 1156



« Reply #5 on: September 16, 2016, 12:30:17 AM »

There's actually a better product called "Deoxit" , but the radio Shack stuff will work in a pinch. I have a some friends that work on/collect vintage electronics and they won't let the Radio Shack stuff any where near their gear, It also has a Low/Med/High valve on it so you can fine-tune the spray volume.
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05 Mica, Sparco Speed, Hard Dog ACE with custom harness bar, Ultrashield 6 point harnesses,FM complete intake, O2 mod, FM downpipe, MR short shifter. Xida 700/400, 3.63 R+P (Spare), 3:9 R+P (current),EWUSA FMIC, Derale hardline delete PS cooler, FM Stage 2 fans w/ OEM connectors, Custom fab IC/Rad ducting, custom cowl intake/heatshield, Ultragauge,Rumblestrip Predictive Lap timer, APR custom mounted rear wing, Custom made streetable/removable front splitter, Run-Cool hood Louvers
PK1
Third Gear
***
Posts: 186


« Reply #6 on: September 16, 2016, 03:46:49 AM »

If it happens more in the morning I wonder if condensation/dew is exacerbating an existing contact issue. I think the above advice is pretty sound and it's where I'd focus my efforts.
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2005 VR MSM, #1254 of 1428
FM exhaust
Rest of FM LE kit + FM radiator and stage II fan in boxes awaiting installation
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