Date:         Sun, 10 Feb 2008 08:01:11 -0800
Reply-To:     Pensioner <al_knoll@PACBELL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Pensioner <al_knoll@PACBELL.NET>
Subject:      Re: lighted switch needed
In-Reply-To:  <200802100155.m1A1tnpc014718@flpi188.prodigy.net>
Content-Type: text/plain; charset="iso-8859-1"

Mike said...

Date:    Sat, 9 Feb 2008 19:45:21 -0500
From:    Mike <mbucchino@CHARTER.NET>
Subject: Re: lighted switch needed

Every aftermarket radio I've ever installed had 2 power leads; one smaller
lead to battery + to keep the station presets and the clock time, and one
for accessory switched power + for the main radio's power.

I've never seen one with a 'signal' input to trigger it on and off.

Mike B.
<<<<

I think the original post had to do with running the radio without powering
up the load shedding relay via the key.  Seems the original implementation
had the radio wired directly so that you can 'tune in' without having the
key in or on.  If you forget the radio's on because you have the volume
turned very low or muted, the radio still draws enough current to flatten
the battery after some period of time.

If you use the key presence signal then you have to have the key in the
ignition to power the radio regardless of volume setting.  So if you can
remember to take the key with you when you go you have a much better chance
of not leaving the radio 'on' and drawing down your battery.

The acc switching you mention powers all the attached accessories and I
don't think that was what the poster had in mind.


----- Original Message -----
From: "Mike S" <mikes@FLATSURFACE.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, February 09, 2008 4:13 PM
Subject: Re: lighted switch needed


> At 03:02 PM 2/9/2008, Scott Daniel - Shazam wrote...
>>Thanks for the reminder on that.  I haven't done it but as soon as I
>>read
>>about it here, I thought that's the perfect solution, using the key
>>buzzer
>>signal from the ignition key to allow power to the radio.  ( use it to
>>control a relay of course , not actually supply power to the radio ).
>
> You should be able to drive the radio's "acc" lead directly. Every car
> radio I've ever dealt with draws it's working power from the battery
> lead, and just uses the accessory lead as a signal - not drawing more
> than a few mA from it.
>
Date:    Sat, 9 Feb 2008 19:45:21 -0500
From:    Mike <mbucchino@CHARTER.NET>
Subject: Re: lighted switch needed
>>>>
Every aftermarket radio I've ever installed had 2 power leads; one smaller
lead to battery + to keep the station presets and the clock time, and one
for accessory switched power + for the main radio's power.

I've never seen one with a 'signal' input to trigger it on and off.

Mike B.



----- Original Message -----
From: "Mike S" <mikes@FLATSURFACE.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, February 09, 2008 4:13 PM
Subject: Re: lighted switch needed


> At 03:02 PM 2/9/2008, Scott Daniel - Shazam wrote...
>>Thanks for the reminder on that.  I haven't done it but as soon as I
>>read
>>about it here, I thought that's the perfect solution, using the key
>>buzzer
>>signal from the ignition key to allow power to the radio.  ( use it to
>>control a relay of course , not actually supply power to the radio ).
>
> You should be able to drive the radio's "acc" lead directly. Every car
> radio I've ever dealt with draws it's working power from the battery
> lead, and just uses the accessory lead as a signal - not drawing more
> than a few mA from it.
>