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unable to start up the car after installing after market hu

i admit im a noob at this i just plugged in whatever fit becuase i got it off of a forum member here. battery still shows 8v any ideas?

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Old 07-26-2012, 07:06 PM   #1 (permalink)
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Default unable to start up the car after installing after market hu

i admit im a noob at this i just plugged in whatever fit becuase i got it off of a forum member here. battery still shows 8v any ideas?
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Old 07-26-2012, 07:18 PM   #2 (permalink)
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You might have blown one of the fuses.
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Old 07-26-2012, 07:26 PM   #3 (permalink)
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like the car tries to start, sounds like its out of battery. i can hear it for a sec but it just doesnt start. if i blew a fuse, car wouldnt make any sound right
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Old 07-26-2012, 07:53 PM   #4 (permalink)
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Did you try a battery test, charge or jump to rule out battery issues?
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Old 07-26-2012, 08:30 PM   #5 (permalink)
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Try charging the battery.
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Old 07-26-2012, 09:43 PM   #6 (permalink)
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My money is on battery, get a jump a charge or a new battery.
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Old 07-26-2012, 10:33 PM   #7 (permalink)
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8V is too low for battery.. should be around 12 with car off and 14 with car on.. 11 would probably be the lowest for the car to start. you mentioned yours was at 8, it probably just died from you installing the radio with the car off or maybe you shorted something out and drained the battery.. try jumper cables and charge it up.
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Old 07-26-2012, 10:59 PM   #8 (permalink)
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Rule-of-thumb. Don't "just plug in whatever fit". Do a little research before doing an install. MUUUUch info on here.
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Old 07-26-2012, 11:51 PM   #9 (permalink)
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you problably had the doors open the whole time and drained the battery, charge it and go.
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Old 07-27-2012, 12:52 AM   #10 (permalink)
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yup it was the battery thanks rveryone i just jumped the car. 8v is way too low adter doing A bit research , should at least have 11. thanks again eveyone who helped
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Old 07-27-2012, 10:51 AM   #11 (permalink)
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alex- in the future, plug a battery tender while you're fiddling with your stereo for setting up eq's and stuff.

it's only like $20 on amazon and works very well. whenever i want to play something on my car stereo while in the garage with engine turned off, i just plug it in. heck, my Z is always plugged in during the week since i only pull her out on the weekends.

if you have a heavy setup you might want to get a digital battery charger and use 2A while you fiddle with your eq's and amps, etc.
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