Originally Posted by
dojj
i've not used the car for 2 months so it needed a jump start on Saturday to get it cleaned up and everything
then another one on Sunday morning, but then it was fine when we stopped in the services
but then it needed another one at the end of the day when it wouldn't fire up but driving it home i sort of turned the music off when i got onto the m25 and yesterday morning it fired up first thing, but then was flat again this morning
but when it's flat, the stereo fails to work at all, it won't even turn on, which leads me to think that's the culprit, unless i've missed an obvious thing when i wired up the amp feed from the battery?
How big is your audio set up ?
I would recommend putting the cars charging system on a diagnostic to check for faults before you go any further or cause damage to your system by under voltage or current draw.
If your charging systems ok the you can simply add another battery of similar spec to the charging cycle.
Try upgrading your big 3 wires to say 4 or 0 gauge for a boost before adding a battery.