Radio flashes to the beat?
Posted: Sun Jan 23, 2011 6:40 pm
Got an old Alpine HU in my car which flashes to the beat of the music 
Wiring is standard factory wiring which has`st been cut and radio plugged into standard ISO plug.
Even with the bass/loud button turned down the radio buttons still pulse when the volume is anything over 8 0r 9.
Front speakers have been upgraded but still on original wiring.
Rear speakers standard on original wiring.
Is this likely to be a bad earth problem?
Sorry for poor explanation!
Wiring is standard factory wiring which has`st been cut and radio plugged into standard ISO plug.
Even with the bass/loud button turned down the radio buttons still pulse when the volume is anything over 8 0r 9.
Front speakers have been upgraded but still on original wiring.
Rear speakers standard on original wiring.
Is this likely to be a bad earth problem?
Sorry for poor explanation!