Hello all, new user here.
I have a battery drain on an '03 IS200. I have run a parasitic test and concluded that the headunit was drawing a lot even with the key out of the ignition. Couple this with the fact that I can switch the stereo on without the key and that it doesn't turn off automatically when removing the key, I clearly know I have a problem.
The clock on the dash also remains backlit at all times.
I have removed the fuse for the headunit and I can now start the car everytime, providing I drive it at least every 3-4 days. I recently left it for about 10 days and the battery was flat as a pancake again (clock light maybe)?
Is this a common issue? I understand this could have happened with a poorly installed aftermarket stereo but this is factory and the wiring and harness look original.
I'd like to get music again so I'm tempted to get another factory unit from the breakers yard but the clock light in particular makes me think I still haven't found the root cause.
