does anyone have any advice on how many watts are neccessary to make the sub sound nice in a 98 4dr blazer??
how much wattage should the sub have and how much wattage for the amp? any info would help cuz i dont wanna get screwed over when i buy them

depens what you want. I have 2 12 inch Massive in my Blazer with a 950 watt amp and it sounds great.
chris

yes, its all a matter of preference. but 400-500watts rms isnt a bad place to start.