165mm Rear speakers

I have had a clear out and found my old focal speakers which i thought i had sold with the car

I was going to fit better rear speakers anyway and these will fit the bill perfectly. only problem is theyre not 130mm

will 165mm (6.5") speakers fit in the rear without modifications?

cheers
 
ordered a pair of pioneer 1312i speakers for the rear. the guy said as theyre in the back door the 3 way speaker would make no difference to the 2 way speaker

im just going to put them focal 165 speakers on ebay. cant be bothered to cut the interior panels to fit them