if i want my car to have the sound quality similar to an rm2000 sony/pioneer hifi, may i know how much i have to budget? thanks

thanks but i'm not trying to compare both here, just want to know the budget if i want similar sound quality.

thanks for th estimate. mind to give me the breakdown e.g. HU, amp, speaker, sub, etc?

ok, how about the upgrade sequence if i got limited budget and plan to do part by part? shall i follow the following:

HU -> front conponent+amp -> sub+amp?

thanks. so do u meant HU + front component 1st?

then later the 4-channel amp to power the front component + sub?

great. next question, between HU and front component, which one should I get first? or need both together to hear the difference?