Ive installed a set of Alpha sonic components into a mates focus st170 running off an amp and 2xalpine subs conected 2 a seperate amp they are all wired to the standard head unit which is the 6cd changer all built into 1 which is why its not been changed but the problem i had was it had no rca outputs so i connected the 2 converters to the relevant speakers and earthed them as it says so i could have 2 rca outputs. Tthe wires for the front speakers run down 1 side of the car along with the rca leads and the power and remote run down the other. The amp warning lights are not on and the live ,earth and remote are ok and ive even wired a normal cd player with rcas already built in but still get a loud popin and humming noise coming from the speakers with the engine off! Im totaly lost any ideas? :headvswal

might be you have the polarities round the wrong way on the speaker wires. ie the neg going to pos and pos to neg, i had that in my old corrado.

good luck

might be you have the polarities round the wrong way on the speaker wires. ie the neg going to pos and pos to neg, i had that in my old corrado.

good luck

tried and no luck am total lost with this one any more ideas

try getting one of these i had one it worked a treat for this type of problem. if it doesnt work take it back saying its fault and you have already got a replacement.

 

http://caraudiosecurity.com/shop/product/products_id/2756.html

sorry my mistake it was this i got http://caraudiosecurity.com/shop/product/products_id/2757.html

 

but the other may work also

where have you earthed them too, dont want to earth it to radio earth , ,, earth to a seperate earth ,, see if that helps.

sorry my mistake it was this i got http://caraudiosecurity.com/shop/product/products_id/2757.html

 

but the other may work also

All give it ago Thanks ! If it doesnt work though am gona rip it all out and start again in case i trapped somethin. :smash:

yep possible,, all the best,

best thing to do is once installed try engine runnig and rev it to see if prob gets worse, then could rule out live power interference,, but the supressors will do this the ones hellraiser recomended are fine!!!