S60 2002 Need aftermarket speaker adapter

[bkinsler]

I am interested in replacing my factory speakers in the doors and rear deck. From what I understand from Crutchfield.com, they don't have any speakers that fit exactly nor do they have a speaker adapter kit. The only place I could find with an adapter is in UK at http://www.nexxia.co.uk. Is this my only option to install aftermarket speakers? Anyone know of a USA based company to sell these?

Thanks.