Car audio problem:?

Question

Problem, when i installed my sub, when i went over bumps, or round corners the sub/amp would cut in and out. i fixed this problem by completely rewiring the car from front to back, and fiddling with the RCA plugs. It is now fixed, but there is a slight fault, and when i turn around corners, e.g. a round-about, the sub will get louder (which is what i want!) but then get softer as i hit the straight again.

i thought, the RCA cables again, and then thought, it cant have anything to do with ground wires, +12V power cables etc, because the amp would completely turn off then back on (as i hit the straight)

could it possibly be because i have an old car battery and as the power steering is used, the two sources (amp and steering) are draining at the same time? this may sound dumb but id like to figure it out.

sorry if im making this all a bit confusing. haha.

My sub is a random brand, precision audio, and the amp is reasonably good, JBL, but this shouldnt matter.

Answer 1

Your ground or power cable could and probably are the problem if the RCAs are good.  If they are making contact, but not good contact not enough power will be able to flow and it will make the sub quieter.  The power steering would have nothing to do with it because it does not get its power from the battery.  The power steering pump is run by a belt off the crankshaft so it is mechanical power driving it.  Make sure all your connections are good.  If they are try a different amp.

Answer 2

Well i had a amp that did the same thing i found it was the amp. I put the amp on the box and i vibrated  it to death one thing was loose in side one of the small coils  in side broke off it allso got louder to when it worked. It was a JL audio 500/1. I now never put the amp on the box. Some thing may be loose in the amp it cut off like 6 times on hard turns and hard stops, and then the amp was gone.