Need help from all you car audio gurus..

[Jersey Auto Parts]

Hey guys, so heres the deal. About two months ago I got a used jl subwoofer. I then installed it to my mono amp. Then about a month later, my subwoofer and amp stopped working completely. The amp wouldn't even power on. I didn't really care about it, since it was cold out for the past few weeks, but however the weather got better so i went to see what the problem was, first I pulled the radio out and everything seemed fine. Then I checked all the fuses, they seemed fine. Then I saw that the 40A fuse on the amp was blown. So I drove all over to find a new fuse. I finally found one and put it into the amp. Then I went to connect the sub, however everytime i try to connect the sub it sparks bigtime. Im talking about the + - inputs. So maybe I thought the sub was bad, so I went and bought a brand new Alpine Type R. Same thing happens with this sub. Im scared to blow the sub or anything, so once I see the spark I pull the wire off right away. Also Im not sure if my amp did this before but the red light blinks slowly. What should i do? This is pissing me off and costing me too much money which I dont have right now. Why does it keep sparking? What could be wrong with the +/- inputs/outputs. They spark both on the amp and sub. Any help would be appreciate. Thanks

[JerseyStang07-Brian]

try disconnecting the power from the amp first before the +/- leads. once you reconnect the +/- then reconnect to the power source

Its possible its not wired, and grounded properly, also try to not touch a negative and positive at the same time, don't ever put them together.

does it spark when the amp is off? is it a dual voice coil sub? is there any chance of you making it up here on a weekend? we can look at it together.

[Jersey Auto Parts]

No it doesnt spark when the amp is off. I can't make it to any meets, I go to school 5 hours away lol. I will try removing all the power and re wiring it.

damn. ok well what i was getting at is if its a dual voice coil sub maybe a jumper wire is out of place. Also, your amp could have an internal short.

[Jersey Auto Parts]

Well I get the red light even when theres no sub connected. If there is an internal short, is there anything I can do?

u can send it out for service, but thatd be a question of if its worth doing that or not. u find an audio shop thats an authorized dealer for your brand of amp and theyll ship it out for you. thats probably their best bet. let a dealer look at it. they wont charge you to lean in your trunk for aminute.