I have followed the guide on here and replaced the rear speakers with Sony 4" ones an put Sony 5" ones in the footwell. I have an Alpine head unit 50 watts per channel. I can now hear music with the roof down but it's so tinny. I took the amp out of the footwell. What size can you get in the footwell? Not after a competition sound just a decent sound
Buy a slimeline active sub, ive replaced the whole system in my car and only when i fitted a Kenwood KSC SW01 slimline sub did it sound great. Its the way forward for a decent sound system.