Outdoor speaker install

[gwill1010]

I have to relplace my outdoor speakers. They are surface mount and only have small hole for the wiring. I want to cut bigger holes and install something nicer. I have a fiberglass sided TT. What I have now is below. Is cutting larger holes a DIY job?
https://www.amazon.com/gp/product/B00SVWY4UG/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A322NKI5CZID9H

Looking at something like this:

https://www.amazon.com/Pyle-PLMR62-Resistant-Speakers-Tweeters/dp/B00022OBNS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1492281522&sr=1-3&keywords=marine+speakers

[WNYBob]

You will probably have an issue as RV walls are about 1.5" thick.

The round ones you referenced has the following Mounting Depth: 2.48"

Try opening up your existing speakers, and then stick a stiff wire in the hole (push through the foam insulation) then measure how deep.

You might be able to find a bezel to hold the speaker out from the wall.

Good luck!