I'd say a loose wire as well, and it could be anyway so start at the battery and work back to the amp checking all the connections. And like Phil said replace the fuses just to be sure.

 

Ill just veto a lot of the suggestions guys......

First of all, its def. something REALLY messed up with the wiring. Whoever did the install is in for an entire rewire, because something like this is very hard to trace.

John....I highly double its a loose wire....I mean wipers? WTF does that have anything to do with it. Also, if it cuts out, and you can repeatedly get it back with a series of wipes/brake checks, the law of probability states that there is no way it makes the loose wire power on EVERY time. IT could be, but like a 1% chance tho.

Phil....same as Johns.....what are the odds of him making the stereo come back on every time.....loose wires arent that "cut and dry"
Also, cant really be a blown fuse if it comes in and out.

Something is definetely wrong here, and this is not something we can help solve over the net. Whoever did it, needs to be kicked, and redo it...the right way.

 

Dave, 2 springs ago I had a wire come loose... that or I forgot to tighten it down, and it would cut in and out just like this. Hit the brakes the wire would move and it would pop back on. I think the wiper thing is just happenstance.
However if it really does effect it... then dude your system is totally screwed and it needs to be 'overhauled' I just watched the show

 

sure it can be.... i've seen it happen personally, and have hit that nail on the head a few times here as well.
fuses don't always burn cleanly... and you can get some very funny behavior from a bad burn fuse or a broken fuse or one w/ loose internals.


regarding the wipers? that is why i asked on whether the sound cut out when using the power windows or moving the top. if the connection is loose or just barely broken, the voltage can bridge a small air gap and flow current.
when the voltage dips (use a meter and see how much of a dip you get running some accessories) a couple volts, that may be just enough to have the air gap become an insulator, and bam -- amp shuts off for just a moment. then you get a fade up as the amp powers back up....

you could get a similar behavior from shifting. i know you don't have an 8500, so you probably aren't wating a multi-meter on the car 100% of the time like i can... but when your revs get high, and then dip down, there is often a voltage dip as the revs go back down. i'd guess that's the voltage regulator in the alternator working...


hopefully, Dieu will report back soon and we'll see what's going on...

 

well...ive read through everything and with my limited knowledge im going to throw this out - and its easy to check - what if whoever did the install somehow (accidentally?) tapped into the wiper circuit for the amp remote turn on??

 

it's always possible, but if that were the case, the amps would only turn on or off w/ the wipers...

still, things could be crossed in there somehow. until Dieu comes back, we're pretty much left guessing.

 

Easiest way to test this is to seperate out the sections of the car.

Either take the car back to the shop, and let it cool down, or have a buddy with a system in his car come over while the car is cold.

Then unhook the RCA's going to your headunit and patch into a different source (buddies car or the shops boards).

See if you can duplicate the problem. If you can, then you know it's not your headunit. If you can't, then you know it's not your amp or sub.

 

I think it is a remote turn on problem. May be an electronic issue with the HU or amp - or it could be wiring.

Of course, grounding is the #1 cause of problems

 

I think Phil is saying that its a 2 part problem. A loose wire causing the thing to cut out on shifts (momentum changes and wires move). The whole wipers thing could be a whole separate issue (unrelated to the shifting problem). This would lead towards a voltage drop somewhere along the line.

The chances of these things happening simultaneously have got to be small, butother than that, I dont see how wipers operating and shifting are even remotely related.

John

 

i'm not sure what the problem is right now. until we have more data, it's all just guessing.

and yes, it could be multiple things causing simililar symptoms.