Hi all, new to this forum and new to this subject as well. Just got a 2000 GS teg.
Need some expert opinions on this subject. I know I know... this subject is all over the forum, but I need the answers ... thx for help.

Well...I have stock system which the sound is not very good. No bass at all

I'm planning upgrade the head unit which brand you guys recommend? Alpine, Kenwood, Pioneer? Model no.? Is it hard swap out the old unit?

I'm also planning to take the front speakers out. Is it hard to do it myself? Any instruction? Which brand is good? I saw some infinity 61/2 one on ebay. Those any good? Any recommend? Oh, do I need that crossover unit(see...I'm very new)?

I don't think I will put the sub in coz I'm not a heavy bass listener. If that's the case, will the component speakers take care that range?

Do I need amp for the front component speakers then? Which brand? How do I wire them? Instruction will appreciate.

Is it necessary to re-wire between the head unit and speakers? Or stock wiring is good enough? What's your recommendation?

Where to buy online is good besides ebay?

Well, that's about it for now... thanks for all your valuable opinions.