TOKYO (Reuters) -- Mazda Motor Corp., Japan's No.5 automaker, said on Tuesday it will use Toyota Motor Corp.'s in-car information service in a move that gives Toyota's telematics format an edge over rival services.
Telematics services are similar to car navigation systems but do much more such as providing weather and traffic information, and even allow drivers to download music and games.
Mazda will install G-Book compatible terminals in models sold in Japan starting next year.
The tie-up will bring to five the number of automakers using Toyota's "G-Book" telematics service in what could be seen as a defeat for Nissan Motor Co., which has tried to persuade others to use its service.
Toyota's minivehicle unit Daihatsu Motor Co., Subaru-maker Fuji Heavy Industries Ltd. and Mitsubishi Motors Corp. all belong to the G-Book camp.
Toyota has aimed to make G-Book -- which offers a wide range of interactive services -- the industry standard in a highly lucrative market that some say could top 60 trillion yen ($570 billion) in Japan.
Nissan, Japan's third-biggest auto maker, shares its Carwings service with Suzuki Motor Corp., which makes minivehicles for Nissan.
Second-ranked Honda Motor Co. has its own InterNavi format, and has no plan to bring other car makers on board.
Mazda has been providing its own "Mazda Telematics" service since July 2000, but decided to join G-Book to reduce operations costs and provide better services, it said.