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hi folks i have a 147 alfa and the radio is being a bit of a pain some times i start it up no sound the radio and sat nav all start up but no sound .if i switch it on and of a few times and take key out more often or not i get sound can any one help cheers mark w:thumbs:
 

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AO Silver Member, 155 Lounge Winner 09
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most likely a faulty headunit, rather than faulty power supply (like bad wiring, low voltage, fuses).

if you are inclined to check things, then remove the headunit, and check the voltages from the main powerwires (eg: UB+ wire).

i presume the wiring has never been altered by you or a previous owner who may have fitted an aftermarket headunit.

:)
 

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it could be a loose speaker plug on the back of the unit. best thing to do is remove the unit make sure everything is plugged in securley. if it is then i would suspect a faulty unit.
 
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