I have brand new boss stereo modle number bv9979bno sound

1. Check the Headphone Output:
   • Make sure that the headphone output jack is clean and free of any debris. Sometimes, dirt or dust can accumulate and affect the signal.
2. Output Mode:
   • Double-check the output mode settings on your Boss BR 1180. There might be a setting that affects the stereo output, so ensure that it is set correctly.
3. Output Routing:
   • Verify that the output routing settings are correct. Check if there's a setting that might be causing the output to be directed to only one side.
4. Master Output:
   • Check the master output settings to ensure they are balanced. If there's an imbalance in the master output settings, it could affect the stereo playback.
5. Factory Reset:
   • Consider performing a factory reset on your Boss BR 1180. This can often resolve software-related issues that might be causing the playback problem.
6. External Monitor:
   • If possible, connect the recorder to an external speaker or monitor system using the appropriate outputs to see if the issue persists.
7. Contact Support:
   • If none of the above steps resolves the issue, it might be a hardware problem within the unit. You might need to contact Boss support or a professional technician for further assistance or repairs.

Have a wiring harness for your vehicle if not get one and have a dash kit that fits your vehicle now plug the new harness into the plug that came from your stock radio now match all the wires from the stereo to the harness twist and tape if you can't solder also may need an antenna adapter to fit your new stereo all wires should be labeled and it's ok if there are a couple you don't use

check speakers balance could need adjusting.

I would of course thing its convergence but this does not sound like a Philips model number, double check the actual model number and brand of the set, it also does not show (the model number) when searching the number in the Philips database.

Maybe The Volume Is Down But If It Is Not Try Buying New Wire
Cables To Hook To The Speakers Or Install Built-In Speakers

Kevin.

Software for car radio usually can't be updated. If Boss have a new firmwire, you can go to their website and install it via USB.

Plug your guitar into the input and a cord from one or both outputs to the inputs of whatever you are using. Meant to be run in stereo for best sound. Two guitar amps?

ALWAYS CHECK UR FUSES FIRST AND FOR MOST

any amp will work with any speaker, you just need to make sure it is a mono amp if you are running 1 speaker and a stereo amp wither 2 or 4 channel if you are running 2 or 4 speakers, the ohm rating on the amp should match the speakers also, on the back of the speaker it has the ohm rating, most will be 8 ohm, but you still find some 4 ohm, depending on the speaker if it has a lot of throw (the in and out movement) you may want a higher wattage amp so you get clean sound, it is up to you.... if you are installing lower price amps to you may hear engine wine or noise while car is running so a grounde loop isolator installed on the system will remedy that... also with the amp the directions will tell you the ohm rating of the wire to use, follow that.... and keep the ground short and clean where ever you put it.. try not to go directly off the battery cause you will get a lot of noise... hope this helps..

Order a new harness from Boss