Audio Systems/stereo problems

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Question
I have a GMC 1985 truck.  The stereo (after market) works but cuts itself off when I reach a certain speed, then, turns back on when I hit the brakes.........please help

Answer
Check the speedo is not connected to the radio and the correct feed wires have power, best to have a friend in the passenger seat with a test lamp (12v) or a meter and see what it happening on the two 12V inputs (live and Accessory)
and there are no loose connections.

Audio Systems

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Volunteer


Peter G. Lee

Expertise

Accessory installations including audio, security and lighting, general wiring and fault finding. Nothing specific to US car electrics such as ECUs or engine management systems please i.e. how do I get the radio out of a Saturn, we don't have Saturns in Europe so I wouldn't know.

Experience

11 years as a security and audio installer in the U.K. 9 years own company in South West of U.K. installing for a number of high street retailers incluing Trinity in-car centre, Road User, Halfords and A.1. Past advisor to and chairman of Sold Secure initative gloucestershire police. member PACT (partnership against car theft)U.K. police, Kit car builder VW air coole

Organizations
Member of the institute of diagnostic engineers M.I.Diag.E

Education/Credentials
Certified by Clifford, Cobra (U.K.) Serpi Star-Gamel, Moss, Philips, Tracker (Lowjack), Pioneer blue chip installer, Kenwood installer. City and Guilds, A.R.E

Past/Present clients
Over 2,000 between 1988 and 2000

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