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<blockquote data-quote="keep_hope_alive" data-source="post: 7794300" data-attributes="member: 576029">very good troubleshooting so far.pull the deck out from the dash, leave it connected, use your DMM and measure the following:DMM set to DC voltage.Black lead on HU ground.Red lead on the following:Ignition off:Ignition (red) wire:&nbsp; ___ DCVBattery (yellow) wire: ___ DCVDMM set to AC voltageLeft Front Speaker (+)&nbsp; ___ ACVIgnition on:Ignition (red) wire:&nbsp; ___ DCVBattery (yellow) wire: ___ DCVDMM set to AC voltageLeft Front Speaker (+)&nbsp; ___ ACVbasically, you want to verify that the head unit is off when the ignition is off.&nbsp; this is verified by having 0.0 DCV&nbsp; on ignition and 0.0 ACV on a speaker output when the car is off.&nbsp;&nbsp; i&#039;m measuring speaker output also so you can verify the HU isn&#039;t faulty.likely, it isn&#039;t the stereo and you just happened to affect other wires or it is a coincidence.use the DMM, set to measure DC Amps, and see how much current that Body Control fuse is pulling when the ignition is off.sometimes, power seats will fail causing a current draw.&nbsp; not sure if those are on that fuse or not.</blockquote>

[QUOTE="keep_hope_alive, post: 7794300, member: 576029"] very good troubleshooting so far. pull the deck out from the dash, leave it connected, use your DMM and measure the following: DMM set to DC voltage. Black lead on HU ground. Red lead on the following: Ignition off: Ignition (red) wire: ___ DCV Battery (yellow) wire: ___ DCV DMM set to AC voltage Left Front Speaker (+) ___ ACV Ignition on: Ignition (red) wire: ___ DCV Battery (yellow) wire: ___ DCV DMM set to AC voltage Left Front Speaker (+) ___ ACV basically, you want to verify that the head unit is off when the ignition is off. this is verified by having 0.0 DCV on ignition and 0.0 ACV on a speaker output when the car is off. i'm measuring speaker output also so you can verify the HU isn't faulty. likely, it isn't the stereo and you just happened to affect other wires or it is a coincidence. use the DMM, set to measure DC Amps, and see how much current that Body Control fuse is pulling when the ignition is off. sometimes, power seats will fail causing a current draw. not sure if those are on that fuse or not. [/QUOTE]

Verification