What is the best way to cut speaker holes in the back seat base of a 2007 42 Ex ? I am think a jigsaw maybe? The seat base is incredibly THICK. I tried using a Rotozip and it seems to take forever.
Any suggestions would be GREATLY appreciated. I am trying to cut the Factory 6" holes to fit 10" Subwoofers.
Jackhammer

Jigsaw or sawsall with a thin fine tooth blade. Make sure you have a few extra blades when you start.

Thanks Frank!! I will try my Sawzall as well as Jigsaw. That is kind of what I thought but was not sure. I just wanted to make sure I wasn't being a BUTCHER!!!!
That seat base is about 1 1/2" THICK!!

please let me know how it goes my boat is in the process of some stero upgrades right now and I did see that that seat base is THICK. BZ

try drilling some holes all the way around the diameter of the hole first and then cut with a jigsaw

That's a good idea. Will make the turns quite a bit easier, and probably not break so many blades. Scribe it with a template and marker first, then drill holes like the numbers in the face of a clock. Should be able to do them all with a single blade if you're careful.
Good luck.

I used a jigsaw....it is thick, maybe 5 to 6 inches...2 12's underneath the rear bench. Hits hard, all the ladies love to sit there for some reason

I used a SawZall...

Yup, me too, a little easier to work with.

wear goggles...sh i t gets in your eyes.