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Old 19-04-2005, 10:28   #9
ian@huth
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Re: Car radio wiring

Quote:
Originally Posted by kobuskint
Oh yes, motorised antenna. Doh!

At the moment I have a car antenna, with a male jack. There seems to be two parts to the jack ie. positive and negative, certainly isolated from each other. The single core trailing aerial wire is screwed into the male proboscis that fits into the head unit. The outer part of the jack is not connected to the wire at all and I presume the antenna is connected to the case of the head unit by the isolated part of the antenna??

This is my jack:

http://www.maplin.co.uk/Module.aspx?...ldID=&doy=19m4

How would I connect it to the head unit case?
I like the top aerial listed on that Maplin page.

It sounds like an earthing problem with the radio. Take a thick wire from the radio chassis to the neutral on the power supply to see if that helps.

Alternatively it could be a problem with the radio itself. A defective capacitor may be cutting off the DC voltage to the receiver module or radio muting when a CD is played may be staying on when in radio mode.

I don't think it is anything to do with the aerial not being connected to the radio case but it could be a faulty aerial. Only real way is to try the radio in the car again if this is convenient.
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