Hi, I have blown alot of fuses when I tried installing my car stereo. I tried to put my stock radio back but it gets very hot at the back of the stereo and overheats. The radio turns on but does not work - no sound. Could I have blown the radio? The fuse keeps on blowing in my fuse box. What could this be?
Replies (4)
ttocs on 11/8/2005 00:14:43
could be a bunch of things. What have you tried to install, what have you successfully installed? Give us as much info as possable.............
jo on 11/8/2005 00:43:09
i installed an after market stereo and it worked perfectly for 2 yrs. Then all of a sudden the stereo stopped working so looked in the fuse box. The 7.5A fuse for the rear lights which is connected to the power of the stereo when the ignition is on, blew. So i replaced that and the fuse and it was fine. Now after a few months, it stopped working again. So I wanted it to be replaced by the factory stereo system...I installed it without removing the neg. battery terminal and it sounded like a loud bang when i connected it. No sound came out of the speakers and when i touched the back of the stereo, it was intensely hot. So i removed the stereo and found out that the 7.5A fuse was blown again. Thank u
swez on 11/8/2005 08:43:53
Blowing fuses always means either too much current draw from devices on a given circuit or a short circuit to ground.
The first order of business is to check your speakers for shorts with an ohmeter. If the speakers and wire sets are OK, they will read close to 4 ohms per wire set. If you find one or more that read <2 ohms, got a problem there.
As for blowing the brake light fuses, this means you are overloading that circuit. It would be better to run the Red power wire to the fuse panel and tap the IGN/ACC lug for power needs. An inline fuse should be used as well. (7.5 - 10A should be adequate here)
About re-installing your original factory HU and blowing the fuse and very hot... that sounds like a miswiring job or a short circuit problem. It might be a good idea to get some professional assistance on this one as you can wind up doing more harm then good. Troubleshooting something like this in an online forum might be a very poor choice.
Not that we cannot figure it out, but rather the inexperienced hands are doing the work and a lack of precise communication, (tech to tech) could cause more harm then good. Troubleshooting electronics problems, are the most challenging aspect of any install. It requires precise info exchange and a full understanding of the processes involved.
Swez
ttocs on 11/8/2005 10:42:31
your power for the radio should not be commng from the rear lights, or from any lighting system. Disconnect pwr from that wire and try to find the +12v constant. If you cannot you can also go to the cig lighter. most radios require 15-20 amps to run..
as for the popping when you plugged in the factory radio, I am willing to bet you popped a cap or a transistor in the deck, and let the magic smoke out.....
Replies (4)
ttocs on 11/8/2005 00:14:43
could be a bunch of things. What have you tried to install, what have you successfully installed? Give us as much info as possable.............
jo on 11/8/2005 00:43:09
i installed an after market stereo and it worked perfectly for 2 yrs. Then all of a sudden the stereo stopped working so looked in the fuse box. The 7.5A fuse for the rear lights which is connected to the power of the stereo when the ignition is on, blew. So i replaced that and the fuse and it was fine. Now after a few months, it stopped working again. So I wanted it to be replaced by the factory stereo system...I installed it without removing the neg. battery terminal and it sounded like a loud bang when i connected it. No sound came out of the speakers and when i touched the back of the stereo, it was intensely hot. So i removed the stereo and found out that the 7.5A fuse was blown again. Thank u
swez on 11/8/2005 08:43:53
Blowing fuses always means either too much current draw from devices on a given circuit or a short circuit to ground.
The first order of business is to check your speakers for shorts with an ohmeter. If the speakers and wire sets are OK, they will read close to 4 ohms per wire set. If you find one or more that read <2 ohms, got a problem there.
As for blowing the brake light fuses, this means you are overloading that circuit. It would be better to run the Red power wire to the fuse panel and tap the IGN/ACC lug for power needs. An inline fuse should be used as well. (7.5 - 10A should be adequate here)
About re-installing your original factory HU and blowing the fuse and very hot... that sounds like a miswiring job or a short circuit problem. It might be a good idea to get some professional assistance on this one as you can wind up doing more harm then good. Troubleshooting something like this in an online forum might be a very poor choice.
Not that we cannot figure it out, but rather the inexperienced hands are doing the work and a lack of precise communication, (tech to tech) could cause more harm then good. Troubleshooting electronics problems, are the most challenging aspect of any install. It requires precise info exchange and a full understanding of the processes involved.
Swez
ttocs on 11/8/2005 10:42:31
your power for the radio should not be commng from the rear lights, or from any lighting system. Disconnect pwr from that wire and try to find the +12v constant. If you cannot you can also go to the cig lighter. most radios require 15-20 amps to run..
as for the popping when you plugged in the factory radio, I am willing to bet you popped a cap or a transistor in the deck, and let the magic smoke out.....
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