Hi,

I recently changed my tucson HU with China DVD/CD/GPS/SD/USB/TV OEM look, etc. It improved the sound quality compared to the stock, but still not satisfied.. I just want to improved the sound clarity / quality. What do I need? The seller said it is already amplified and I just need a sub?

Can you please advisE/ is a slim sub will do the job? or it is better to add an ampli and then slim sub? I want a slim sub as I don't want to take up space, I just want it under the seat? Budget will be around 10K max. Tucson have 4 speakers and 2 tweeters already. What more do I need besides subs and ampli (if needed)? Thanks!