alrite i was running 2 kenwood 6 by 9s 2 paper cone pioneer 6 and 1/2s off a out of date pioneer 45 by 4 deck. everything has worked great for the last few years and the 6 by 9s which are new have worked fine. but recently just yesterday may 5th i put in a mtx road thunder 10" 200 watt subwoofer running off of a 500 watt alpine amp. i installed it all myself and followed the instructions closely for how to wire up my amp and everything and its worked fine. I fuse blew and i didn't have tail lights or dash lights but the stereo still worked fine. today i changed the fuse for the lights and now nothing for my stereo works. what did i do wrong?!!!! i don't understand it it was working fine all of today and yesterday. please help and respond quickly because i don't want to screw anything up worse.
Replies (12)
cplkittle on 05/6/2004 22:40:00
tell us exactly where and how you wired up the amplifier.
where did you get the power for it?
where did you ground it?
how did you run the inputs for the amp?
oldmazda on 05/6/2004 23:44:04
ok now this just got wilder in my opinion, now everything works fine. i really don't understand that. is it possible that the deck just overheated and because everything is wired through the deck it all shut down? i dunno whatever i can tell you how i wired it, i hooked up a direct line to the battery for power with a 20 amp inline fuse. this i ran underneath my truck along the frame and up into the cab behind the seat which i then attached to the amp. the remote line i hooked up to the deck same as the avc jack which i ran underneath the the carpet and along my door to behind my seats. i grounded the amp out on my floor boards right above the the frame, about 3" from where the power came up. it worked fine and i had a amplifier wiring kit thing that has directions which i followed very closely, seeing as how i didn't wanna screw anything up. i think thats it if you see anything that i've done wrong tell me about it and i'll try to correct it. but if it was that the deck just overheated or something is there anyway i can stop it from doing that? oh one last thing the amp that i have is one that i got from a freind for $100 its an alpine MRV T505 do you think i got a good deal on it, and is it enough to power 2 MTX 10" roadthunders because i was thinking about getting another one?
cplkittle on 05/7/2004 00:29:08
The only thing I can think of is that maybe the vehicle has an interior light dimmer that ran through the factory radio. This wire would not be used with the aftermarket radio and could have grounded out causing the fuse to blow.. how that affected the radio, I do not know.
Troubleshooting without the car is almost impossible to do..
ever seen anything like this Ttocs?
uochronos on 05/7/2004 00:29:54
hmm i would say that its possible something you did shut down the HU and then it reset but other then that i have no clue on this one.
oldmazda on 05/7/2004 01:21:32
well everything is working right now including the interior lights and tail lights but i just wanna know if there is a way to make sure it stays working. that is why i was wondering about whether it had to do with overheating because it was a relatively hot day, and when i took out the deck it was warm so i dunno, i thought i had blown the whole deck so i'm glad i didn't but i really don't want to, so any help would be great.br
uochronos on 05/7/2004 02:41:56
deck can getpretty warm i have not heard of this happenig from over heating before although its not impossible. i eould think more of some sort of electrical error or short. maybe a grounding issue even. like i said i'm not too sure but i would check all your grounds and make sure3 everything is fused right. make sure the head unit is grounded to the body pan to bare metal. a bad ground can cuas4e alot of problems even things i never thought of from what i have seen here
swez on 05/7/2004 10:13:09
Double check your HU wiring.... especially the grounding wire to floor pan. If you grounded this HU to the tail light ground line... fuse would blow as that circuit will be overloaded when the brakes are applied. A bad bulb or poorly ground lamps can also cause this problem.
Overheating? Possible... if you were running it hard for an extended period of time. Most amps will shut down to cool when thermal temp sensor reaches its cut off point. When the device cools, everything will return to normal operation. Some HU's may also have that feature???
Good puzzler...
Swez
ttocs on 05/7/2004 16:22:14
that old pioneer deck may have different wiring. Is the pwr wiring orange, yellow, and blk? Or red yellow blk? 1984?
oldmazda on 05/7/2004 21:05:56
uhhh i don't know about the what color the wiring is but i know that it changes color about 5 times before its connected to the ingnition. I think that its wired through the ignition along with quite a few other things, so i don't really know what to say in response to your question. my truck is an 84 but my deck is a 3 year old pioneer DEH 21. I plan on replacing it eventually but it is good enough for now. I think...
oldmazda on 05/8/2004 20:04:50
does anyone know what i should do, because last night i was driving with my lights on and my stereo going and i blew another fuse. when i use them seperately they work fine but when they are used at the same time they blow fuses
swez on 05/8/2004 20:54:59
Which fuse is blowing here? The reason a fuse blows, is because there is too much current being drawn off that circuit or there is a short in the circuit.
If your stereo is wired to fuse box, it should be tapped off the ACC/IGN circuit and HU grounded to bare metal chassis or floor pan. If you have tapped into a 12 volt circuit in the dash, but it's not ACC/IGN, that circuit may not handle the extra load well and blow the fuse. The cigarette lighter lead will work, but it may have constant 12 volts even with the key out. Most cigarette lighter circuits are 20-25A.
This should also be a pretty heavy gage wire you are tapping in the dash. The IGN/ACC line to IGN switch is pretty heavy gage wire. Maybe #10 or 12 gage wire. If a smaller wire (#16 or smaller) not gonna cut it as that wire gage is for a low current circuit.
Swez
ttocs on 05/9/2004 11:12:53
from what you said the wiring sounded a little messy. I would start simple by cleaning it up and see what you find.
Replies (12)
cplkittle on 05/6/2004 22:40:00
tell us exactly where and how you wired up the amplifier.
where did you get the power for it?
where did you ground it?
how did you run the inputs for the amp?
oldmazda on 05/6/2004 23:44:04
ok now this just got wilder in my opinion, now everything works fine. i really don't understand that. is it possible that the deck just overheated and because everything is wired through the deck it all shut down? i dunno whatever i can tell you how i wired it, i hooked up a direct line to the battery for power with a 20 amp inline fuse. this i ran underneath my truck along the frame and up into the cab behind the seat which i then attached to the amp. the remote line i hooked up to the deck same as the avc jack which i ran underneath the the carpet and along my door to behind my seats. i grounded the amp out on my floor boards right above the the frame, about 3" from where the power came up. it worked fine and i had a amplifier wiring kit thing that has directions which i followed very closely, seeing as how i didn't wanna screw anything up. i think thats it if you see anything that i've done wrong tell me about it and i'll try to correct it. but if it was that the deck just overheated or something is there anyway i can stop it from doing that? oh one last thing the amp that i have is one that i got from a freind for $100 its an alpine MRV T505 do you think i got a good deal on it, and is it enough to power 2 MTX 10" roadthunders because i was thinking about getting another one?
cplkittle on 05/7/2004 00:29:08
The only thing I can think of is that maybe the vehicle has an interior light dimmer that ran through the factory radio. This wire would not be used with the aftermarket radio and could have grounded out causing the fuse to blow.. how that affected the radio, I do not know.
Troubleshooting without the car is almost impossible to do..
ever seen anything like this Ttocs?
uochronos on 05/7/2004 00:29:54
hmm i would say that its possible something you did shut down the HU and then it reset but other then that i have no clue on this one.
oldmazda on 05/7/2004 01:21:32
well everything is working right now including the interior lights and tail lights but i just wanna know if there is a way to make sure it stays working. that is why i was wondering about whether it had to do with overheating because it was a relatively hot day, and when i took out the deck it was warm so i dunno, i thought i had blown the whole deck so i'm glad i didn't but i really don't want to, so any help would be great.br
uochronos on 05/7/2004 02:41:56
deck can getpretty warm i have not heard of this happenig from over heating before although its not impossible. i eould think more of some sort of electrical error or short. maybe a grounding issue even. like i said i'm not too sure but i would check all your grounds and make sure3 everything is fused right. make sure the head unit is grounded to the body pan to bare metal. a bad ground can cuas4e alot of problems even things i never thought of from what i have seen here
swez on 05/7/2004 10:13:09
Double check your HU wiring.... especially the grounding wire to floor pan. If you grounded this HU to the tail light ground line... fuse would blow as that circuit will be overloaded when the brakes are applied. A bad bulb or poorly ground lamps can also cause this problem.
Overheating? Possible... if you were running it hard for an extended period of time. Most amps will shut down to cool when thermal temp sensor reaches its cut off point. When the device cools, everything will return to normal operation. Some HU's may also have that feature???
Good puzzler...
Swez
ttocs on 05/7/2004 16:22:14
that old pioneer deck may have different wiring. Is the pwr wiring orange, yellow, and blk? Or red yellow blk? 1984?
oldmazda on 05/7/2004 21:05:56
uhhh i don't know about the what color the wiring is but i know that it changes color about 5 times before its connected to the ingnition. I think that its wired through the ignition along with quite a few other things, so i don't really know what to say in response to your question. my truck is an 84 but my deck is a 3 year old pioneer DEH 21. I plan on replacing it eventually but it is good enough for now. I think...
oldmazda on 05/8/2004 20:04:50
does anyone know what i should do, because last night i was driving with my lights on and my stereo going and i blew another fuse. when i use them seperately they work fine but when they are used at the same time they blow fuses
swez on 05/8/2004 20:54:59
Which fuse is blowing here? The reason a fuse blows, is because there is too much current being drawn off that circuit or there is a short in the circuit.
If your stereo is wired to fuse box, it should be tapped off the ACC/IGN circuit and HU grounded to bare metal chassis or floor pan. If you have tapped into a 12 volt circuit in the dash, but it's not ACC/IGN, that circuit may not handle the extra load well and blow the fuse. The cigarette lighter lead will work, but it may have constant 12 volts even with the key out. Most cigarette lighter circuits are 20-25A.
This should also be a pretty heavy gage wire you are tapping in the dash. The IGN/ACC line to IGN switch is pretty heavy gage wire. Maybe #10 or 12 gage wire. If a smaller wire (#16 or smaller) not gonna cut it as that wire gage is for a low current circuit.
Swez
ttocs on 05/9/2004 11:12:53
from what you said the wiring sounded a little messy. I would start simple by cleaning it up and see what you find.
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