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Started By
Message
Aftermarket car stereo pulls too much energy?
Posted on 11/8/14 at 1:02 pm
Posted on 11/8/14 at 1:02 pm
I hooked up an aftermarket stereo, all the wiring is correct and the head unit makes a sound when I plug in the wiring harness, but when it's connected my gauges lose power and my information panel spazzes. What do I do about this because I can't get the original radio back in?
5
Posted on 11/8/14 at 1:15 pm to RexfordW
Did you add any aftermarket amps? Sounds like a battery/alternator issue.
Posted on 11/8/14 at 2:05 pm to RexfordW
Do they work when the radio is switched off? If it's drawing too much power, you'd think it would blow a fuse.
What year/make/model?
Some of the information may pass through the factory harness and be miswired or not connected with the new harness.
What year/make/model?
Some of the information may pass through the factory harness and be miswired or not connected with the new harness.
Posted on 11/8/14 at 6:21 pm to RexfordW
Sounds like you're drawing power through your fuse box or somewhere other than directly from the battery. Did you just wire an adapter to an aftermarket head unit or are there other components like amplifiers being used?
Posted on 11/9/14 at 1:18 am to RexfordW
no the radio would not draw too much current. Only a large amp would.
Posted on 11/9/14 at 1:19 am to Jack Bauers HnK
quote:
Sounds like you're drawing power through your fuse box or somewhere other than directly from the battery. Did you just wire an adapter to an aftermarket head unit or are there other components like amplifiers being used?
really? You are supposed to draw power through a fuse. You never ever ever draw power directly from a battery.
Posted on 11/9/14 at 10:02 am to LSUtigerME
It's a 2008 cobalt
Posted on 11/9/14 at 10:05 am to 420centraltime
No aftermarket amp just head unit
Posted on 11/9/14 at 12:48 pm to Napoleon
Of course you put a fuse on the line directly from the battery. Some poor quality installations may just stick a wire for power somewhere in the fuse box for the whole car and be pulling power through the same line feeding everything else in the car instead of a dedicated line straight from the battery.
Posted on 11/9/14 at 4:04 pm to kengel2
Im not sure about on star, but I spliced the original wires to an aftermarket harness, I cant the wires too short on the stock harness and can't splice them back, and no I havent used a multimeter
Posted on 11/9/14 at 4:24 pm to RexfordW
My bet is you dont have the part I linked, its what interfaces with your dashboard. Chevy decided at some point it was a good idea to run the door chimes and blinkers through the radio. Sounds good, but adds another part for installation.
Posted on 11/9/14 at 5:17 pm to Jack Bauers HnK
quote:
pulling power through the same line feeding everything else in the car instead of a dedicated line straight from the battery.
This is even worse. Everything else? seriously. each fuse powers one system. the radio has a fuse, thje cigarette lighter has a fuse, each headlight has a fuse.
man, well intentioned advice from people who don't understand the problem is just as bad as bad advice.
Posted on 11/9/14 at 5:21 pm to kengel2
The part I?
Posted on 11/9/14 at 5:35 pm to RexfordW
Go up a couple posts and click the link.
Posted on 11/9/14 at 6:02 pm to kengel2
No I don't have that
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