Need Help

[unknown1BDf-150]

Ok, i got everything wired, amp to stock deck, I ran
power wire from the battery, got good grounds, ran the line out converter from rear spreakers, got turn on wire from deck, when the car is turned on not running the subs play fine, but when you turn the car on (engine running) the subs start pulsing real bad to full excursion.

What is causing this, i unhook the amp and if no can help im just gonna take it to a shop

oh yea its a 2000 camaro

[the bandit]

Check your speaker wire connections......make sure you have done it right and their tight and secure.

[CAMAROWIDBASS]

check your ground

make sure its sanded down to the bare metal

[unknown1BDf-150]

thanks for the help so far, i will try a new ground and see if that helps

[unknown1BDf-150]

anyone else ever have this problem

[unknown1BDf-150]

Anyone