Well let's see! In my bug, I removed panel cover that seats on top of the tank. I installed a pair of Kenwood 6x9s!
If you look at your fuel tank the way it is seating! (Assuming that you are standing infront of your car open, panel removed, fuel tank exposed) Move either next to the left or the right front wheel. Can you see where your boot hinges are? (They normal have springs, unless you installed gas riders) Tie a piece of string between the two hinges! Why? Because you CANNOT cut any higher then that point! The only room/space you have is BELOW the string you just tied and 4 inches above/away from the fuel tank. Here you mark, where you want your speakers to seat, as well as their shape! PLEASE...PLEASE..PLEASE CONSIDER STEERING COLUMN WHEN CUTTING!!!!
In my bug what I did was, I marked the 6x9 shape, drilled the 4 holes to hold the 6x9s.
I used an angle grinder but using a cutting disc. First I cut a rough shape, and swopped into a grinding disc to smooth out the sharp edges, AND TO PERFECT THE SHAPE.
I fiited my left 6x9, and BOB was my uncle! However it was different story on the driver side(right). Here I rotated the shape of the 6x9 onto it's long side, so that I would not risk damaging my steering column. It worked for me!
PLEASE BEAR IN MIND THAT WHEN YOU CUT, YOU CAN NEVER EVER REPLACE IT, SO:
(1) Make sure it's what you want!
(2) Even more important.....ALWAYS MEASURE AT LEAST 10 TIMES. Ask for people's point of view. What I leant the hard way is that "You MEASURE ten times...but you only Cut once"
I like it where my speakers are seating, because when you are inside the car you cannot see them at all, unless stick your head under the dash board. This helps a lot if you want to build a powerful sound system, and you don't want thiefs to help themselves later.
So enjoy putting together your sound system!
From: Bugger (South Africa)