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Discussion Starter #1
I went out tonight and my stereo started acting crazy. I have the Mach Audio system and replaced the stock 6 disc with an in dash Kenwood DVD a little over 3 years ago. Well tonight the sub stopped working and this has happened a few times, i just kinda wiggle the head unit and it kicks back on. I figure a loose wire. Tonight same problem. This time I wiggle and the whole thing goes out. No dice getting it to come back on. I pull out my handy dandy manual and check the number 31 fuse. It's good. Other than dismanteling my headunit to check for an internal fuse, any clue what it could be? Any help would be appreciated.
 

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has a screw loose
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I'm gonna say , it's either another loose connection or something has finally shorted out . I would remove the radio and double check all the connections and then do the process of elimination from there.
 

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^^dido sounds like maybe the harness/wires are loose in the back did you do install yourself? I've had problems like these before everything works good for a while then my shody workmanship shows up with gremlins I've learned my lesson just using electrical tape and twisting wires togather lol
 

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Discussion Starter #4
No, i didnt install myself, however it was a second hand stereo and the wires into the connector jack for the stereo itself were prety bad and i rigged em up. its been 3 years so i sposethey did finally give. time to go troubleshoot it.
 

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Discussion Starter #5
UPDATE on the situation. I have shot wiring for accessory/illum power to the head unit (yellow wire usually) that comes through the processor to the headunit fine. I am just not getting my voltage on the power (red wire). I went back and it is not getting to the processr unit either. I had this aftermarket installed and I have no clue where the fuse would be between the processor and the battery that may have blown. Any suggestions would be great. I don't assume i blew the processor because the fuse in it is good, and i am still getting acc/illum ower through it, and i am not getting power to it.
 

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first off your yellow wire is your constant and red is your accy....yellow should show voltage all the time and the red wire should only show voltage when the car is on... test the wiring at the harness for the kenwood hu and probe both wires and see if they are getting proper voltage when they are supposed to
 

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Discussion Starter #7
with my car on / in acc i am getting power at the yellow wire constant, just nothing at the red. this is both at the hu harness and at the proccessor. so i know the power is going through the processor to the hu. should i rip open the hu and seeif there is something blown in there?
 

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before you tear the unit apart run a new accy wire to any circuit that only shows voltage when the car is on and if it powers up cool you found your problem.....does the yellow wire show voltage when the car is off?
 

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Discussion Starter #9
I have to go shoot it. I'll let ya know. 5 minutes.
 

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Discussion Starter #10
Yes, the yellow does give me 12.6 with the car off.
 

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has a screw loose
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I wouldn't tear into the head unit , more than likely it's a blown fuse or could be a loose connection at the fuse box .

As a last resort and you don't find anything in the fuse area , tear into the head unit but more than likely you will end up needing to replace it unless you see it's something simple .
 

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Discussion Starter #12
I wouldn't tear into the head unit , more than likely it's a blown fuse or could be a loose connection at the fuse box .

As a last resort and you don't find anything in the fuse area , tear into the head unit but more than likely you will end up needing to replace it unless you see it's something simple .
well like i said before bro, i checked all the fuses i could find to include the box under the ood and the interrior fuse box. im getting continuity through the fuses telling me theyre good and i dont see how a wire from the fuse box would have come loose from shaking the head unit. so im not assuming a loose wire, but good idea none the less. i just dont know if there is possibly another fuse between the fuse box and the processor that i am missing, plus im not 100% clear on how to shoot between those two components because i didnt install the stereo myself and i dont know how the guy ran the wires. this was installed a while ago so i dont think the guy even works there anymore let alone would he remember my carout of the however many he's done. looks like i gotta keep on keepin on with it and just lose out on music for now.
 

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I don't know what to say anymore , When you get time just take everything out and start from scratch like its a new install and look at the harness and make sure nothing has a burnt smell to it .

Look at the bright side at least you tried .[thumb]
 

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ok if you are getting voltage at the yellow wire when its off then thats fine....do what i said and run your red wire to an accy circuit or shoot even tie it in with the yellow wire just to see if it powers up....if it powers up you know the radio is fine and its a wiring issue.
 

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Discussion Starter #16
ok if you are getting voltage at the yellow wire when its off then thats fine....do what i said and run your red wire to an accy circuit or shoot even tie it in with the yellow wire just to see if it powers up....if it powers up you know the radio is fine and its a wiring issue.
awesome so thats not going to fry anything jumping the red to the yellow. awesome. i'll grab some wire from work tomorrow and jump it and see what happens.
 

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jumping it will not do anything but the unit will never turn off since it will always have power....the yellow wire has voltage at all times to keep memory and the clock going and when voltage is applied to the red wire it allows the unit to turn on and stuff.....
 

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Discussion Starter #18
I understand that, however if i jump it with the yellow wire and it turns on in the first place i know that the wiring somewhere is bad and its not the unit itself.

or am i kicking myself in the ass with that?

its not a permanent thing, just a troubleshooting tool for now. im off to try. wish me luck.
 

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Just because the fuses show continuity doesn't mean they're still good. I have had several instances where the fuse reads ok but it's still a bad fuse. My suggestion would be to first jump the yellow wire to the red wire to make sure the head unit is still good like mrfdatride said.
If your head unit is still good I would replace all the fuses anyway, including the one on the back of the radio, fuses are cheap and it's going to be one of the easiest ways of testing it.
 

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Discussion Starter #20
Well thank you everyone or your help. when jumpped the unit worked good. so that was a huge relief. i went through and checked every fuse what do you know there was a broken one. aparently i wasnt paying atention and fuse 41i believe it was is a seperate radio / accessory fuse. yea, im dumb. even still i did some wire repair and seated the wires in the plugs better so there was no chance of crosing again, tied up some wires so they arent so lose, and just cleaned out the car. everything sounds beter and works good. thanks again guys.
 
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