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Discussion Starter #1 (Edited)
changed the battery last week , radio fine all other systems fine but no sound from Speakers , checked set up & fader etc all ok , any ideas ???


cant find fuse for speakers either have found them in manual but not in main fuse box under stearing wheel , in the manual they show 4 fuses inside a broken box line , what does that mean , please help , hate to drive without music , many thanks
 

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AO Silver Member, 155 Lounge Winner 09
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the subwoofer works?

there's a chance the headunit has not restarted properly, so try resetting it again. you can either disconnect the battery again, or remove the headunit and pull the fuse or disconnect the main plugs.

the headunit has a 'booster out' wire that triggers the amplifier on/off. maybe this isn't working properly at the moment, so the reset might fix that. if you have a multimeter, then check that the booster wire is functional when you turn the headunit on.

the amplifier presumably has a fuse, but i'm unsure where it's located sorry. less likely that the amplifier has suddenly died.

:)
 

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The speakers dont have there own fuse, try resetting it, best to remove radio, disconnect it for about 1 min and then reconnect it, make sure you have your 4 digit code as you might have to re enter it when doing this.
 

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You will see 4 holes in the head unit, as you wont have the right pins, all you need is to find something to push in there, do one side at a time, only needs pushing in about 3 inches, use like 2 small screwdrivers
 

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easy. whilst there are available special 'unlocking keys' to help remove it, you can use some form of metal rods instead (eg: metal coathanger wire). push the rods into the 4 holes (2 each side on the face of the headunit); don't force them. the rods push aside the springy locking tabs.

it can be easier if you first remove the card/cupholder underneath. extend both trays, grasp them firmly, then pull/jiggle, and it will unclip.

then you can reach under and behind the headunit to apply gentle force to push it outwards after you push the metal rods into place.

:)
 

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Discussion Starter #9
took out radio and removed wires at back for 1 min but no joy on puttin things back no sound still , the small fuse at back of radio , this can be brought anywhere ?
 

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the small blade fuse is readily available from any decent electronics/auto store. but that's the main fuse for the headunit; so if it appears to be working in 'any way', the fuse should be ok.

do you have a multimeter? i'd use it to measure the voltage coming out of the 'booster out' terminal (in the yellow mini-ISO plug), to ensure it's sending out +12V (to trigger the Bose amp on).

there's subsequent troubleshooting you can do, but i'm unsure how far you wish to go, rather than taking it to an ICE store to have checked out:
*check audio signal is coming out of headunit: for testing, you could measure AC voltage out of the speaker output terminals on the headunit, or hook up a spare little speaker
*check power at the plug connected to the Bose amp
*isolate each speaker from the amp, and test one at a time

:)
 
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