Actually some of the newer aftermarket stereos have internal switch controls that minimize power draw, but can sometimes allow excessive currents. The CSS stereo I have when switched off, and still connected to constant +12V, draws about 35mA. I think most of that is the display backlight, which turns off when I remove power completely. The CSS stereo does keep memory settings for quite a while with power off, about 2 weeks or so. Jon On 9/1/2015 3:57 PM, David Beierl wrote: > At 04:28 PM 9/1/2015, Alistair Bell wrote: >> This subject is becoming a perennial favourite in the list. I >> measured the current draw of my stereo head unit. It was something >> like 130mA turned off, but face plate on. And only 30 or so mA >> turned off with the face plate off. Faceplate off current draw was >> low enough to for me to accept, I take the face plate off if not >> driving the van for a few days. > > That's nutty. Whatever happened to OFF? Memory keepalive should be > zero draw. > > Yrs, > d |
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