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Re: Stereo installation
I'm trying to install this new Blaupunkt
into my 5k. The Blaupunkt has three power
related wires :
1. power (8A fuse) to be connected to ignition
2. Battery (3A fuse)
Any reason why the stereo would need to be wired
directly to the battery when it already has a power
connection through the ignition switch ?
The #2 wire above is connected "directly" to the battery (i.e., to an
unswitched +12 source). This is used to keep the radio's "memory" alive
when the main unit (#1 above) is switched off; ditto the clock and any
other "electronic" marvels provided by the unit. Current draw is typi-
cally very low and should not cause any problems unless you leave your
car sitting unrun for months on end.
Oftimes, you find a #4 wire which is the unit's "illumination", so that
the radio "lights up" based on dash lights (so you can find it at night,
even it the radio itself is "off").