Electrical system failure after stereo installation by Best Buy

Asked by Aug 07, 2016 at 01:39 AM about the 1992 Oldsmobile Ninety-Eight 4 Dr Regency Elite Sedan

Question type: Maintenance & Repair

I need help desperately. My son leaves for college
Monday morning and he is taking his car. He had an
amp and subs installed at Best Buy. The car was
running absolutely perfectly before that. We got a
call that install was complete but car wouldn't start.
Now ALL electronic functions are not functioning
except the ones doing very strange things like the
radio that comes on when the keys are taken OUT
of the ignition. Car will not start, acts like battery is
dead but it isn't and starter isn't moving, Windows,
lights, horn doesn't work. Store is claiming this is a
magical coincidence. I need ideas quickly please-so
Grateful for any help!

6 Answers

Did they mess with the wiring could be that.


I would have them go back over their work to see if they had knocked off a wire by mistake or forget to plug a connector back in.


Also check for a blown engine fuse in fuse box under the hood.

1 of 1 people found this helpful.

Thank you for your help. So check for a blown engine fuse? (I can't drive it to get it back up There) please excuse my ignorance but is that one fuse or a group of fuses and do you happen to know where that would be located?


Like I said in my answer there is a fuse box under the hood and for location of fuse Google owners manual for the year, make and model of your vehicle will take you to sites that will show you location of fuse box and fuse location.

1 of 1 people found this helpful.

You can buy a mini- and maxi- fuse kit at any parts store, it will include a fuse tester. Even if you don't know what the fuse is for, you can still replace it if it is blown. Just touch the tester to every fuse and swap out the bad ones. (It does require a charged battery to test with.)

Your Answer


Looking for a Used Ninety-Eight in your area?

CarGurus has 36 nationwide Ninety-Eight listings and the tools to find you a great deal.


Oldsmobile Ninety-Eight Experts

  • #1
    Travis Willard
  • #1
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Cadillac Eldorado
360 listings starting at $2,300
Used Buick Park Avenue
427 listings starting at $1,800
Used Buick LeSabre
23 Great Deals out of 1,890 listings starting at $1,588
Used Cadillac DeVille
1,663 listings starting at $1,988
Used Chevrolet Caprice
178 listings starting at $34,100
Used Lincoln Town Car
38 Great Deals out of 1,778 listings starting at $1,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.