My Sony drains my battery as well. I disconnect the head unit and that stops
the drain but it's a crummy design all around. Bad buttons, too much current
drain when off, and the radio's not very good either.

Mike

On 11/9/07 11:19 AM, "Don Hanson" <dhanson@GORGE.NET> wrote:

> A few days ago, I was looking for help diagnosing the reason my Aux battery
> was going down in a few days.  Well, I never actually 'diagnosed ' the
> reason by testing with my multi-meter, but I did fix the problem in my own
> dummy-way.
>   By trial and error, I isolated the current drain to the Sony stereo.  It's
> bugged me anyhow, since I installed it a few months back, that the head unit
> always stays lit up quite brightly (since I have it wire into the Aux.
> battery without any connection to the ignition or the vehicle battery for
> camping reasons..)  Others responded to my query saying they, too, had
> encountered battery power drain from this type of install.
>
>   So I stuck a toggle switch into the power supply wires, put it next to the
> steering column under the dash, and no more low coach battery..No bright
> light from the dash when we are trying to sleep, either...
>
>   Thanks, everyone who offered advice.
>   Don Hanson