A lot will depend on where you place the booster inside. Using the antenna wire entrance as Miramar suggested is a good place to enter, just enlarge the hole, being careful not to damage the antenna wire. You'll have to scrape up some Dicor sealant, use a plastic scraper and take your time. When you're done use Dicor to seal up the penetration. Where are you planning on mounting the antenna?
Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!