Bose - output from left channel only

A2on18's

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My recent purchase has Bose installed and appears to only have an output on the left channel.

Are there any things obvious to check (other than the fader/balance settings as I have done that!)
 
When you say that it’s only outputting on the left channel, do you mean that the speakers in both of the right-hand doors aren’t working?

Cheers,

Tom
 
When you say that it’s only outputting on the left channel, do you mean that the speakers in both of the right-hand doors aren’t working?

Cheers,

Tom

Yes that’s correct, no sound from either speaker on the off side


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The Bose system has four inputs: FR, FL, RR, RL. The head unit sends 4 line-level signals to the amp. I’d suggest that your first point of investigation should be the black 20-pin connector behind the stereo. Are all wires/connections intact?

Cheers,

Tom
 
My recent purchase has Bose installed and appears to only have an output on the left channel.

Are there any things obvious to check (other than the fader/balance settings as I have done that!)
Take the radio (OEM I assume?) out, check the connectors are all good and tight. Check for signs of wiring mods, perhaps for aftermarket radio?
PO may have fitted an aftermarket radio, then put the original back before selling the car.
Mac.
 
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I have had an intermittent issue on my head unit (not Bose) for quite some time in that the right channel dies but can be resurrected by increasing the volume temporarily. Any chance this is similar?
 
@Au2ro Are you loosing the right hand sound from both front and rear speakers? If not sure adjust the Front Rear fader next time it occurs.
Mac
 
I have had an intermittent issue on my head unit (not Bose) for quite some time in that the right channel dies but can be resurrected by increasing the volume temporarily. Any chance this is similar?
This issue is caused by a dodgy connection to the speaker, either at the back of the head unit, at the speaker itself, or at the door pillar connection. The door pillar connection is the usual culprit. Simply disconnecting and remaking the connection solves the problem, unless there’s corrosion due to water ingress.

Cheers,

Tom
 
This issue is caused by a dodgy connection to the speaker, either at the back of the head unit, at the speaker itself, or at the door pillar connection. The door pillar connection is the usual culprit. Simply disconnecting and remaking the connection solves the problem, unless there’s corrosion due to water ingress.

Cheers,

Tom
Would that affect both front and rear speakers.
I thought the rear units were driven via an amplifier from the radio line outs.
Edit: Applies to non Bose only. Often referred to as "half amplified"
Mac.
 
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Steve, for reference on the one time I tried the stereo (April'ish?') I'm sure it was working. Frankly the only reason I remember it at all was I seem to recall being surprised it didn't sound 'that' much different to the stock units. I'm sure I'd have remembered if it had only had outputs on one side and would have certainly added into the listing.

The only area I disturbed was around the ECU as described in the ad (so not around the stereo or the doors), although doesn't Scott's original Ad mention the stereo thinking about it?

Hopefully it'll be a connector somewhere as above.
 
Thanks for the feedback all, hoping to get a few minutes later this evening to do a little bit of investigation and will report back


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So this is a very odd one, upon testing with radio only had output from left side, tried CD and had both channels. Back to radio and both channels work and it's been fine since!

Hopefully just a gremlin and all will be OK now! Thank you all for the help and suggestions

The really painful thing was the only CD I could find was a old Girls Aloud disk!!!


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So this is a very odd one, upon testing with radio only had output from left side, tried CD and had both channels. Back to radio and both channels work and it's been fine since!

Hopefully just a gremlin and all will be OK now! Thank you all for the help and suggestions

The really painful thing was the only CD I could find was a old Girls Aloud disk!!!


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Your secret is safe with us ?.
Mac.
 
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