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Date:         Sat, 16 Dec 2017 18:52:09 -0800
Reply-To:     Neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <>
From:         Neil N <musomuso@GMAIL.COM>
Subject:      Re: Stereo Off; USB Device Current Draw Through Stereo
Comments: To: Jim Arnott <>
In-Reply-To:  <>
Content-Type: text/plain; charset="UTF-8"

Thanks Jim.

Ya I guess I was just surprised to see that while stereo was off, current draw increased with USB thumb drive connected. (via a cable to the rear USB port). I did note that the thumb drive activity light stays on when stereo is off. This might something specific to rear port USB connections; I'd never seen same on my Kenwood CD equipped deck. Figured others' might want to know about that.

I'd thought to use the Su circuit as you have done but I think I'll re install the stereo "kill switch".

On Sat, Dec 16, 2017 at 5:42 PM, Jim Arnott <> wrote:

> Neil, > > My Pioneer non-cd stereo has maintenance power from some constant 12v > source on the fuse box. The actual power to make noise is switched through > the key buzzer circuit. Key in = tunes. Key out = no tunes. It takes it > about three weeks without driving for the maintenance circuit to drop the > battery to where it won’t start. > > Jim > > > > > On Dec 16, 2017, at 1:21 PM, Neil N <musomuso@GMAIL.COM> wrote: > > > > > My Alpine NON CD head unit + amplifier "maintenance" current draw when > > turned off. ...... >

> > > > - music USB thumb drive inserted: 0.210 mA > > - music USB thumb drive removed: 0.150 mA > > > > Would an iPod or smart phone "music" device draw more current? i.e. would > > the entire device be powered up even if stereo is off? >

-- Neil n

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