Hi, welcome to Doha, unfortunately car modifying is illegal here and got stricter during car inspection unlike before. there are no sound competition also(though i would like to join one). there are car clubs here mostly run by filipinos(honda guys hehe)they're into sprint(might start again when winter comes).

people here knows only pioneer, sony, jbl.  there's a kicker shop near landmark, guys there are pro too.can do anything. got my gears from US since it's not available and unknown here...