I'm still noob in ICE
i'm using Trans Amp n 12' woofer

Amp (TRA-453) powered by key ignition, bcoz my HU doesnt hav any remote output.My HU, pioneer Carrozeria HRZ099
after two weeks using this setup, my amp went to protection mode and cannot power up, the seller said ur amp blown bcoz of my head unit not stable.He suggest using Voltage stabilizer.and i did.
bocz its under waranty, he replace another Amp (TRA-454), but after two weeks.it blown again.(Protection mode)

again, he explain my HU caused the problem,and he replaced new amp TRA-458 and he dont want to responsible for waranty anymore. But this product 1 year waranty. but i dont know after two weeks.Sh*t happen again.

there is no problem with wiring/ installation
any suggestion that i need to check?

Thnx, make sense, i'll update with pic.