Hi i have an Alpine PDX 1.1000. i wired it up with 4 gauge stinger amp kit. the problem is at first it when i turned the volume up the amps led would stay on but the sub which is an alpine tyoe x would turn off when i reached about 20 on my apine head unit then i have to turn it off and turn it back on to get it to play. Now the Led stays on but the subs wont play at all?? Any suggestions would be great Thank!!!!

 

Oh also when the led light stays on its the regular light not the protection light.

 

What kind of crossover are you using, passive or active? Do you have a multimeter?