Bit of a static shock when touching door after using sub

inder · Post by **inder** » Tue May 17, 2005 9:30 pm

When getting out of the car, and touching the drivers door to close it, i sometimes get a small static shock, this happens after playing music with the sub on...

Does this mean a poor earth connection?? Im guessing it does?

M1 TCH · Post by **M1 TCH** » Tue May 17, 2005 10:25 pm

mate, ive got the same problem.

i changed the earth strap that go's from the bonnet to the wing and static stopped. but now its come back after putting in the sub and amp.

i also get a whistle noise coming through my sub when you accelerate!

inder · Post by **inder** » Tue May 17, 2005 10:37 pm

I think it's defo the earth in that case, ill have to move mine to somewhere better.

I don't get a whistle noise with mine, hope you solve that

M1 TCH · Post by **M1 TCH** » Wed May 18, 2005 10:47 pm

well after a very long day, still no luck!

ive changed 3 earthing straps and still same problem!
ive still got the sound of my engine running though my sub!

ive earthed the car, moved the amp earthing, checked wiring.....

what could be the problem?

thanks

mitch

andy2151 · Post by **andy2151** » Fri May 20, 2005 8:58 pm

I get same prob mate and thats with no sub or amp in

jags53 · Post by **jags53** » Fri May 20, 2005 9:11 pm

same happens on mine and me dad brand new focus.

M1 TCH · Post by **M1 TCH** » Fri May 20, 2005 9:33 pm

today i changed my head unit. turned out that the rca outputs were faulty.
however..... i still had the same problem. so i changed my rca cables and the engine noise has gone!

now there is hardly any bass in my sub, and the sub moves more than it should when thr stereo is on!

it's almost like distortion. ive tried 4 different amps and 2 head units and still no luck!

guys.... try changing the earth strap from the bonnet to the wing. i used a piece of 4awg wire and i got no static or interference.

hope that works.....

mitch

spankone · Post by **spankone** » Sat May 21, 2005 7:53 pm

you've got alternator whine try getting a supressor that goes onto the alternator... or check your cable routing dont run speaker cables next to power cables etc or rca's like you said can also be a problem.... and static shock my way round it is to late your girl friend get out first so she gets zapped or just push your door closed by the window

inder · Post by **inder** » Sun May 22, 2005 10:00 pm

spankone wrote:and static shock my way round it is to late your girl friend get out first so she gets zapped or just push your door closed by the window

lol nice one

polo2k · Post by **polo2k** » Mon Jun 27, 2005 10:04 am

when you get out you may be skiding on the seat material which generates a static charge
try putting one foot on the floor while holding onto the door frame when getting out

the whinning sounds like a possible ground loop