The 12v switched wire makes it so that the unit turns off when the ignition is off
4
Anonymous14w
My truck was fitted with it and my Audi has it too. And I've never had issues?
4
Anonymous#214w
Then this tips not for you
-1
Anonymous#214w
Yours must be wired up correctly then
4
Anonymous#114w
I'm ocd as fuck about anything audio related 😂 ik ppl hook into the hot 12v instead of the switched source and it drains batteries.
3
Anonymous#213w
Most radios need both to work properly b/c the switch wire is just used as a signal to turn on, not power.
To fix a draining issue, check your ground connection first, if that isn’t it buy two fuse taps, bust out a multimeter and properly wire the system.