hi guys im really confused here i have put in my vw golf mk4 1.4 16v, a sony explod amp and a jbl sub and i have wired it all up with a 4 gauge wiring kit now heres whats confusing me:
(1)even if i take off the sterio and take out the keys the amp light stays onthe other thing is:
(2)i have earthed it but i dont think its a good place because the red light on the amp keeps coming on any ideas were i can earth it becuase i'v earthed it in the boot on the left hand side were the first aid kit goes theres a hole there and i jus got a screw and a bolt and put the earth through the screw and bolted it on.please help me guys im really confused

oh and has it got anything to do with my sterio being a staright conection to the live aswell? i mean from my point of view i dont think it has got anything to do with the sterio? but i could be wrong