I have installation scheduled for Saturday for a DVR 625. The only rule my apartment complex has is that only 1 hole can be drilled into the unit. I just got a call from someone at the installation company, they say that I can't get a 625 becuase it requires drilling more than one hole. So apparently my only option is getting two separate receivers. Can anyone explain this? I don't understand how a 625 would require multiple holes, but two separate receivers need only one. Any help or advice would be appreciated.