mga idol question lang. eversince i had my subs removed then had my rear speakers amplified nwawala ung sounds kpag bago start ang engine sa umaga. May power ung hu. ung speakers on and off ung sound. i had it checkd where i had it installed they said ung alternator dw ang may problema malakas dw karga pero i had it checked sa casa ok lng nman dw. ano kya to?