Ignition ON, empeg booted, empeg plays a track after i hit a button.
then i send empeg to standby via holding the up key.
turning off ignition.
waiting .... ( 3 minutes ) empeg still in standby ...

Mine works as following:

Play track... switch to standby...turn off ignition...still in standby... for 60 seconds, then it powers down totally.

OR:

Play track...turn off ignition...empeg goes to standby...for 60 seconds, then it powers down totally.

Maybe your wiring has still a problem cause the empeg should come to totally power off after switching of ignition. Or have you also tried to pull out the key? maybe then it looses the ignition-power and the empeg switches off. If not your wiring IS wrong and you have the batt connected to the ignition sense. Try it.

TeeMcBee
Got my Mk2! # 080000143