connecting car stereo to mains supply

**Colin Stamp** · May 21st 06, 01:24 PM posted to uk.rec.audio.car

On 21 May 2006 06:11:28 -0700, wrote:

I'm trying to run a car stereo from a mains supply, but I'm a bit
clueless about wiring it up, and I wonder if some bright spark out
there can help me. Briefly, I have a power pack which provides a
regulated 5 amp 12 volt DC supply. The stereo harness has five wires (I
can deal with the speaker cables OK!): a yellow wire marked 'Battery +
12V', an orange wire marked 'Auto antenna', a white wire marked 'Panel
light', a red wire marked 'Ignition', and a black wire marked 'Ground'.
The power supply has positive and negative terminals (obviously). What
do I connect to what? Many thanks,

Alistair

"Battery +12V" and "Ignition" both go to the positive terminal.

"Ground" goes to the negative terminal.

Leave the "auto antenna" wire un-connected. Insulate it so it doesn't
short to anything else.

Try it with the "Panel light" wire un-connected at first. If this
gives you no panel illumination, connect it to the positive terminal.

Unfortunately, the radio will probably forget all it's stations
whenever you turn the power-supply off. Short of wiring in a back-up
battery, there's no way round this.

Cheers,

Colin.