Grounding Problem...

[Will_Nova1.2i]

Hi,

Ive had my sound system in 2 cars now, my first nova and everything was working fine, had an amp for 6x9's and amp for sub. No problems at all and sounded perfect!

But, when i got my second nova installed exactly the same with a ground going to a point in the boot it sounds perfect when the engine is turned off but as soon as i start the ignition, bad feedback kicks in. :x

I have even tried grounding it straight to the negative on the battery and its exactly the same!

Some one mentioned it could be the alternator on its way out but i have no clue about any technical stuff!???

Any ideas?

Cheers!!!!!!!

Will :wink:

[epo]

i had that prob with a cheap amp i went 2 motor world and bought a inline supressor its basically a little black box which u plug in2 the the red and white sockect things on the am then plug the red and white leads in2 the box

it cost about a tenner or u cud always try an alternator suppresser

[Will_Nova1.2i]

oh right, did buyin the black box work ok for u then?

[epo]

its 95% better still a little wining

[hype]

I`ve had such a problem, too. At our local car-hifi dealer they said, it could be some of the following reasons:

- cheap chinch cable (that one, which goes into the amp)
- +12v and the amp cable should not cross their way (put them seperately)
- bad ground (too long cable)

[nwmlarge]

try re grounding your earth for the battery i e follow the earth from the battery and re ground it using the same diameter cable as your power cable.

otherwise replace the rca's or run them down the transmission tunnel

[Jules]

Normally it's cheapo RCA cables and running them too close to power cables that do it - RCA's down one side, all other power cables down the other - don't bother with the transmission tunnel - just use the outsides.