Might be a good idea to ask Col Foribin.....he had the reccessed put in my boat when i bought it....don't know if he did it himself or had somebody to do it for him but it appears to be professsionally done...might be able to give you some assistance...seems to work prefectly....have had some friends do it and doesn't seem to be a hard process in the stratos's....if you need more advice get to mee in a pm