Error 25009 Install FIM Synchronization

Hello,

i try to install FIM Sync and i have a remote sql server but i have this error

Product: Forefront Identity Manager Synchronization Service -- Error 25009.The Forefront Identity Manager Synchronization Service setup wizard cannot configure the specified database. OLEDB Provider Information:

Description = 'Login failed. The login is from an untrusted domain and cannot be used with Windows authentication.'

Failure Code = 0x80004005

Minor Number = 18452

<hr=0x80230406>

Any idea ?

Thanks