Problems with stereo - radio memory infomation lost

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<P align=justify><FONT face=Verdana><FONT size=2><B>Fault:</B> One of the commonest faults experienced by the DIY installer is a radio-cassette or CD tuner that 'forgets' it's radio presets every time either the unit itself or the vehicle's ignition is switched off. </FONT></FONT></P>

<P align=justify><FONT face=Verdana><FONT size=2><B>Cause:</B> Most modern source units have two live power feeds. Firstly, an ignition live switched feed, which controls the unit switching on and off with the vehicle's ignition, and a second, permanent live feed, which generally provides the main power feed for the unit, but which also keeps the unit's memory alive when the ignition system is switched off. </FONT></FONT></P>

<P align=justify><FONT face=Verdana><FONT size=2><B>Remedy:</B> Normally, the ignition and permanent live feeds are red and yellow in colour(*). To prevent memory loss when switched off, simply disconnect these two feeds and reconnect in reverse - ie. red cable car side to yellow cable unit side, and vice versa. In many cases, provision is made on the unit's wiring harness to allow easy swapping. </FONT></FONT></P>

<P align=justify><FONT face=Verdana size=2>Notes: (*) Cable colouring may vary according to manufacturer. Always refer to the wiring diagram for the unit before connection, seeking the advise of a specialist auto-electrician if necessary. Incorrect connection may invalidate car or unit warranty, and may cause permanent damage. </FONT></P>
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