There are a number of curiosities with the system to be found in the North West. As stated, it has replaced the original Ditra "Good Afternoon Welcome to..." system which could be heard at Lancaster, Wigan NW and Warrington BQ.
(See post number 204 for an example)
That system was also installed at Blackpool North, but was rarely used in later years (I did remember hearing it around 1999 / 2000 ish). None of the stations have a common TOC (They are all Virgin except Blackpool which is Northern). They do not even have a common Local Authority who may like to sponsor them. While Wigan NW is technically in GMPTE land, GMPTE seem to have nothing to do with this station as only a handful of local services to / from GMPTE area stop per day. Warrington is in Cheshire and Lancaster / Blackpool in Lancashire.
At Blackpool it also annoyingly announces "This train originates here" at the end of every announcement. I am not what the relevance in that is. Last time I was at Lancaster the other week they were announcing manually.
As regards West Yorkshire. Some areas such as the Aire, Wharfe and Calder Valley stations which had a Phil Sayer based Ditra system now have that horrendous Phil Sayer based Funkwurk system, which is truly awful. Others, i.e. Mirfield, have had Phil replaced with a lady. I have a friend who is an announcer for Northern in their control at York so I might ask for a bit more gen on the different systems.
Other Intercity stations appear to prefer manual announcements. Wakefield Westgate used to have what I believe to be a Ditra system (sounded the same as the system still in use at Bishops Stortford and Seven Sisters) in the mid 1990's, but it is long gone. Wakefield, along with York and others, have manual announcements. Like many stations the announcers at York vary greatly. Most are quite poor. There is a bloke that talks far far too fast with a strange accent which means that you cannot hear a word he says. There is a woman who talks at a reasonable speed but has such an annoying high pitched voice that it nearly bursts your ear drums.
One of the best manual announcers in the North can actually be heard at Manchester Victoria. There is a chap there with quite a broad Lancashire accent, but he speaks slowly, at the right volume and with correct pronunciation and intonation.