I blew two fuses in a day for the stereo. I just installed a new power antenna if that has anything to do with it. And the head unit is a Kenwood Excelon Z828. I cant figure out why they keep blowing. The fuse is a 20 amp. Can i throw a 30 amp in there and be safe? I just dont see what could be wrong. I double checked and all my wiring is fine. Nothing crossed or anything. Im also running an Xplod amp to two Ultimate 12's.

 

You blew the fuse to the head unit? You must be using it to power some speakers.

If you're blowing fuses, and you've checked all connections for shorts, then you're getting it too hot.

The more you push an amp (and yes a head unit has an internal amp, just really small ) the harder it works and the hotter it gets, as well as the voice coils in the speakers. This all makes the amp run less effeciently. The less effecient it becomes, the more power it takes to run it. The more power it takes, the more amperes have to flow through the wire/fuse. If the amperes exceed the rating of the fuse, then it'll keep popping it.

So yes, change to a larger fuse. You may try a 25 amp just to be safe. It that works, leave it alone. One danger you run into with using a larger than needed fuse is that the wire will get really hot and burn **** in your car before the fuse has time to blow, and that's not a good thing. :nono:

AJ

 

Its not the actual fuse in the head unit thats blowing. Its the one under the dash. Sorry i didnt mention that before.

 

Right. But the one under the dash is the one going to the head unit, correct? If not, what wire is it in? What device does this wire go to?

AJ

 

Yeah, your right. Its a 20 amp fuse. I guess ill start checking all my wires again. But ive already gone over them a few times.

 

I have a Z828 in my 91 Z28 and blew a fuse the other day. Some how had a power surge in my electrical system? hmm.. but anyway, probably should ever put a larger fuse then required, for the sake of the unit. Not sure if i'm being helpfull, just thought i'de share my story.

 

Well i narrowed it down. Turns out its my acc. fuse thats blowing and not the actual one for the radio. Any ideas?

 

most of them time in my experience, when those blow, its from that pesky cigiratte lighter socket, basic use of those things are bad in our cars. Even if you plug a radar or cell phone, or use it for it's original intention, they are old and ground easily. If you think that's the problem, you can get a stock replacement at like advanceauto for like $5 and looks the exact same. That should fix your problem, if thats whats doing it.