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aftermarket headunit stock system

323fever

Full Member
Joined
Feb 12, 2010
Messages
74
Location
Laredo Tx
im gonna install an aftermarket on my 02 avalanche but i do like the whole thing that when you shut off the truck the stereo stays on untill u open the door. I want to keep that feature for my aftermarket and i was wondering if it does it automatically after installing the head unit or i have to buy something for it to stay like that.
 
Since this thread is 6 years old I hope he has it fixed by now..... >:D
 
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