Lee Tea
Easy CHEAP Way to Improve the Bass on a Ford Sony Subwoofer Focus ST

Ford focus mk3 rs st 3 or 5 door front & rear 1200 watt car speakers upgrade kit these j series speakers could be exactly what you are looking for. The seller is eco_uk and is located in England. Installation Tip on the above speaker kit you will have to do some modifications to the tweeters supplied to make them fit behind the panel where the existing tweeters are fitted.