That big universal bezel that protrudes above the fender is going to be butt ugly. It has to be big to accommodate different fender angles. I bought one years ago that looked exactly like this and paid $19.00 bucks but I never used it for the reasons I mentioned.

Oh yeah, it going to take some big huevos to power that 1" hole saw through your rear fender if you've never done it before.

You might try an antenna booster from Radio 1st before whacking up your car.

I don't recall a car built in the last 10 years that still use power antennas, so they are definitely falling from favor.

There, that's my 2 cents.