Hi
I have a 2001 bugeye and thought the same thing

, always played about with i.c.e in my other cars so thought it was time to upgrade the scooby.
I replaced the headunit and rear speakers first as they look the cheapest speakers i have ever seen

. The fronts are just as bad but sounded a lot better running just off the new headunit.
I have now fitted new front speakers infinity kappa's and run everything off an amplifier