Audio Systems/FM reception loss

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Expert: Peter G. Lee - 1/17/2007


Question
Whenever the remote wire to the amp is hooked up (and has been with 3 different head units) FM reception goes to practically nothing. Undo the wire and reception is good again. The people at the shop blame it on the amp, but I've had the same set up in a more enclosed area. Any ideas? I listen to the radio more than anything  

Answer
Ok Jimmy, lets look at his logicly, the radio FM works ok when the amp signal wire is dicinnected but cuts out when the amp is powered.
It's NOT the radio
Is it the amp? What powr cable do you have to the amp, it should be heavy enough for the job and fused at the battery terminal.
The next test is to NOT connect the signal lead on the amp but bridge the power connection on the amp to the signal connection thereby switching on the amp, does it still cout out the radio, no then there is a short on the signal cable. if it still does it disconnect the RCA lads (inputs) from the amp and try again, if it is OK then connect the leads one at a time untill the radio cuts out, there is the problem
Peter

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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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