I also run a TalexLite.
There is a problem though, some months ago the Talex directors had a disagreement and the company went into administration. Both directors started new companies, both using the ex-Talex hardware. One is Novus and the other is Talex technology.
It is alleged that neither database is now anywhere near as up-to-date as it used to be and I can confirm that:
There is a new RedSpeed camera right outside my office. It has been there about 4 weeks and so far neither Novus or Talex have it on their latest databases (v 8035).
If I was buying new and considering the arm & a leg prices most of these companies seem to want for subscriptions I would consider a TT1 v3 or TT1XL and utilise the camera database from PocketGPSWorld which is very accurate and up to date and very easy to install. You can also use the PGPSW voice files on the TT's so you get verbal warnings so you don't need to take your eyes off the road.
The new RedSpeed camera is pending inclusion on the next PGPSW database release as is the other new Gatso camera just down the road.
As for wiring in a Talex, it is a breeze. My method was to remove the centre console, cut the two wires leading to the ciggy lighter and rejoin them with those chocolate block style connectors. Then run the Talex lead as a spur from this connector under the dash and out via the side triangle piece.
Not forgetting to use an in-line fuse on the power side.
One word of caution, when replacing the 'triangle' don't bash it back because you can trigger the fuel cut-off which is just behind it requiring a manual reset (like I did