Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

Hi All

Basically My amp has no power going into it. (4 channel 3000W BSE amplifier) wired up with a 4 Gauge Vibe wiring kit

the things i have tested are as follows -
> Power wire - firmly attached to positive battery with inline fuse less than 2 inch from battery
Fuse is not blown, tested for continuity with multimeter. Pulling 12V when engine is off, 14V when engine on
> Ground wire - only 7 inch long, connected directly to a sanded, bare metal part of the chassis
> +12V remote turn on lead. Crimped and taped securely to +12V remote turn on from Head unit
pulls 0V when stereo is off, 12V when stereo is on

All three were hooked up in this order - Ground first, then remote turn on, finally Power from Battery

Fuses in the amp were tested for continuity, both fine

There are no lights for power on the amp, no protection light either
Tested a second 2 channel 500W amp, same as above

Tried with no speakers/sub connected, still nothing. tried a different RCA lead - nothing. tried no RCA lead - nothing

The thing is....it all worked fine before i made one change. i needed the boot space and the amp was sat freely in the boot. i screwed it to the back of the sub box and screwed the sub down. now im stuck here!

i have removed the amp from the back of the sub box back to how it all was before the issue appeared, still no luck.

i thought i could have damaged the sub by banging a screw through something, but the amp should still work wired up without the sub attached.

any ideas on what to test next?!!

bump....google has not helped me this time im afraid

I've wired many subs and all I can say is get any wire, a speaker wire and attach the remote and power together on the amp just to see if it's not the remote not connected propley to the right cable on the head unit, if not I know you have grounded the wire to a sanded metal area on the car, but try another point, I've had issues were I've attached it to a sanded metal area and it just didn't respond as grounded.... If not your amp may be damage and you may need to borough a mates to test if it's f**k or not!

thank you for that.

i shall give that a try to see if the amp powers up. it did work before as i mentioned and i have not changed the remote wire.....its got to be worth a try though

a new ground point also i have not tried so il report back soon and let you know

it was a dodgey ground wire as you said!

took the original one off, sanded like mad all over and around the bolt, re crimped the ring connector on the end of the ground wire and reconnected

worked like a dream!

i hope this topic can be used by others as a troubleshoot checklist for their troublesome installs

Thanks a million!

Bit late replying but that's ok