always on stereo unit

tismehi

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I have a '99 e300d and I have just fitted a new jvc stereo unit with bluetooth, front usb and aux in.
I would like for it to be able to be powered on at all times - ie, without the key.

is it a matter of joining the permanement live wire to the one which powers up when I turn the key?

or is there another way to do it? maybe through the fusebox?
 

cleverdicky

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Yes that would work. But you risk draining your battery.
Make sure you have a fused supply.
 

television

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As cleverdicky with inline fuse so just join both 12v plus together
 

M80

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In your case I would consider linking the 2 feeds by an override switch. Off- normal, on- unit on while ignition off.
A bit of clever wiring through a relay could drop the relay and link whenever the ignition switch is turned preventing a flat battery you forgot.
 
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tismehi

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thanks guys,

your advice was a help.

i connected the unit by cutting the yellow ign feed yellow wire and joined it to the permanent live red wire.

i fitted an inline fuse at this point and it works exactly as i wanted it to.

cheers again.
 

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