need broadfield or anyone who knows alpine to help

[Hoffman5982]

I have an Alpine CDE-9874. Ive had it since christmas and I have never had a problem, except my amp will randomly shut off, but it did that on my last headunit too. anyways, I recent;y added a 60 amp fuse to the amp to replace the 40 amp because I kept blowing it(1800 watt amp), and ever since my headunit will just randomly shut off. sometimes it will turn right back on, sometimes it will stay off for 20 minutes. at first it barely did it, but now I rarely get to listen to a whole song. I took the wiring harness out and completely re-did it, and that didn't fix it. My friend says its overheating but yesterday it shut off as soon as I pulled out of my driveway and the car is parked in the shade so it wasn't hot at all. I love this headunit and I dont want to have to replace it. anyone have any suggestions?

[the converted]

Is the amp only powering a sub? All I can think of is that one of your speaker wires has an intermittent short in it. Does it happen over bumps or anything like that?

[Hoffman5982]

my amp is powering 2 subs. would a short in the speaker wire cause it? it sometimes does it on bumps but it also does it on our repaved highway. I guess I should clarify, by completely re-did the harness I mean the harness that came with the head unit and I pinned it to the factory harness plug, so its only like 6 inches long

and also, I added 2 infinity crossovers with infinity tweeters a few months ago. Im 90% positive it didnt start right after that but do you think one of them is bad? they werent new when I got them
Modified by Hoffman5982 at 8:50 PM 7/29/2009

[the converted]

I would start with disconnecting those just to rule it out. How did you wire them up? Twist and tape or did you solder and shrink tube it? I'm more worried about a short in the door or something like that.

[Hoffman5982]

I used wire crimps. at the time I did it I hadn't messed with sodering, but I know how to now.I have to take my door panels off to try and fix an annoying rattle so I'll take them out and see if its them or not