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SolaraGuy.com • View topic - wiring stereo
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wiring stereo

wiring stereo

Postby mettler » Sun Dec 20, 2009 10:10 am

I am trying to wire in a stereo. I have the power on, ACC, and the amp, but I can't get any sound thru the speakers. I can barely hear them..any suggestions?

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Postby 99BlackSandv6 » Sun Dec 20, 2009 12:31 pm

Check and recheck all your wiring, and the settings on the amp. Check your gain setting on the amp and any loudness setting the head unit may have. More details would help us help you. Good Luck.
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Postby mettler » Sun Dec 20, 2009 6:58 pm

I got it..evidently I had to have all the speaker wires hooked up - I was just testing one speaker. Toyota makes it difficult by having only one ground wire for all the speakers too. That took me a minute to figure out.

thanks for the help
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Postby mettler » Mon Dec 21, 2009 8:42 am

I have sound and everything, but I can't go above Volume 4 without the speakers overloading..any suggestions?
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Postby TLMNICK » Mon Dec 21, 2009 9:15 am

Did your car have the factory JBL system in it? If it does, you have to disconnect and bypass the JBL amplifier....otherwise it won't work as it should.
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Postby mettler » Mon Dec 21, 2009 10:07 pm

do you know why the amp won't work? The stereo that was stolen (a sony) I installed and had the amp hooked up. This new one is a sony too, and I have the amp hooked up. I am going to try hooking the amp up to the 7.5amp wire and see if that makes a difference. I wonder if this new sony is puting too much power out to the amp. That is what it sounds like.
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Postby mettler » Mon Dec 21, 2009 10:10 pm

looking at the wiring diagram I might have just found my prob. I think I might not have powered the amp correctly. I'll let you know
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Postby MisterTedster » Wed Dec 23, 2009 2:51 am

I'm a little confused by what you mean by hooking up a 7.5 amp wire to your amp.

Even if your sony h/u had high-volt preouts, your amplifier should handle it just fine, just make sure you set it accordingly. Also, check your gains.

Also, speaker distortion can be the result of many many factors. ie. blown speaker, bad amp, sending audio frequencies to a speaker that it can't handle, etc.
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Postby mettler » Thu Dec 24, 2009 1:54 pm

I have a wiring diagram for the factory JBL+Amp stereo system. I need to double check the wiring, but there are a few wires that are not accounted for in the wiring diagram - the dim wire and a few others.
But, as far as I know everything is hooked up identically to the other Sony hu. But, something isn't quite right with the volume. From volume setting 0 to volume setting 1 there is a substantial gain in volume. Then, past 3 it is distorted/overloaded. I'll let you know what I find out when I go thru the wires again.
From the wiring diagram, you a line from the 20amp fuse labeled +B, and you have a line from the 7.5amp fuse labeled ACC in, and you have a line coming from the hu labled Amp On.
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Postby DaTwUnKrAziEpInOy » Thu Dec 24, 2009 2:24 pm

I think you're supposed to bypass the factory JBL Amp all together, if i'm reading this post correctly. Hence why there should be two wiring harnesses, one set for the speakers and the other set for battery, 12v, dimmer, ect.

Pictures would help too. :drinking:
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Postby 99BlackSandv6 » Thu Dec 24, 2009 2:44 pm

Whoa, wait. If you are trying to go through the factory amp you really shouldn't bypass all of that crap. :think:
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Postby mettler » Thu Dec 24, 2009 3:33 pm

no, I am not bypassing the amp.. Here is the wiring diagram. As I have said, I had it working just fine with the previous sony hu.

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I have all the wires accounted for except for a white with thin green stripe that is not in the shrouded bundle. So, outside of the shrouded wires I have the red for the amp, the two power wires, the ground, and the white with a green stripe one. I can't figure what that one is for. The white one is not on the diagram
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Postby mettler » Thu Dec 24, 2009 6:52 pm

I tracked down my old sony hu wiring diagram and it is the same. I must have something hooked up incorrectly. I'll check the ground tomorrow
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Postby mettler » Fri Dec 25, 2009 2:56 pm

white/green stripe is dimmer
green is illumination
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Postby mettler » Sun Dec 27, 2009 12:17 pm

this head unit also gets extremely hot.. I can't even touch the back
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