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Hello all - so I found out what happened. The dealer failed to connect the correct wires to the factory Shaker 500 amps, so sometimes the amp would not shutdown. I had to wait until it failed to turn off and then I was able to see a 1.3 amp draw, then traced to the factory amp. I pulled that fuse an...

Update: The install shop replaced the power distributions module (I forget what the correct name of this device is, but they installed it when they installed the new head unit). As before, I had no issues for about a week, and then the drain issue returned. The install shop now wants to do their own...

Ah that's true about messing with the wires, they would use that against you saying 'well you messed with it' I would keep pushing back on them, since it wasn't doing it before and it's doing it now. It shouldn't be draining the battery every 4-5 days, that's just unacceptable. You could also try c...

Hi Welcome to the forum It sounds like you've done most of the troubleshooting and it does sound like it's pointing to the new deck. The only other thing I would try, just to rule it out. Is the XM satellite module, if possible. I would try unhooking that, leave the deck hooked up. Then redo your t...

I'd like to hear from others who have installed the Alpine iLX-107 head unit and if anyone is having an abnormal amp draw resulting in low or dead car battery. The short story - I have a 2008 Mustang GT with the Shaker 500 sound system and no battery issues at all. I have a Optima yellow top for 4+...