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Discussion Starter #1
So I have a stock 2009 1.8 SL hatchback with the CVT.
I notice sometimes when I am coming to a stop, my car shudders, that has to do with tranny I think, but i also notice that when car is idle,with headlights, stock radio on if I turn steering wheel, RPM's drop noticeably. It seems to me that car draws to many amps while idling with light and radio on.
anyone else notice this? I also have a bad ground somewhere because when i have ipod plugged into input on 6 disk changer and i turn on running lights or head lights I get the bad ground buzz through speakers....
 

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Well there is no ground connection in the radio. If you go with my original sound system, you can make your own ground for the radio. I used to have issues too. My radio would turn off and stay off, until next start. When I did my audio system and made a ground, I haven't had one problem.
 

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I notice when I have the car running with radio on, heat on and phone charging, and go to power down the window (or power up) I feel a slight vibration in the pedal and RPM increase; but that's it. I never notice a buzz going through the radio though; and my radio has never just shut off.
 

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Discussion Starter #4
Nice eyelashes!

Nice eyelashes BTW very cool.
Yes I notice the pedal vibrations as well. and a shudder when my car comes to a stop. whole car shudders.....
perhaps next month when I do my system I will, have to look at a bigger alternator..?
Meow
 

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Yeah I think the alternator kinda sucks. Its good for very minimal operation.
 

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Nice eyelashes BTW very cool.
Yes I notice the pedal vibrations as well. and a shudder when my car comes to a stop. whole car shudders.....
perhaps next month when I do my system I will, have to look at a bigger alternator..?
Meow
it sounds to me like you may have to run a dedicated ground wire to your head-unit chassis from the body recommend 14guage speaker wire for simplicity sake.

Note: Peak ALT output is at roughly 2,000RPM's so noticeing revs change at lower RPM's / idle when running full load on the electrical system is normal.
 

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I agree with mcleod. Also if u look at where ur head unit connects to the car stero wiring there is a black wire which is ground n if ur head unit isn't conneceted to thatv that could be ur problem.
Also it may look connected but make sure the pins where tgey connect match to the ground.
 
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