hello...i have the citroen c4 2011 and I want to make a small upgrade to the factory sound I do not want to spend a lot of money I want anything strong and clean for me ... I have already changed the two front speakers and I have seen a lot different ... now that I want to change both back ... and tweeter in front...and all of these I would like to do without making any changes to the factory source ... and I want to add an amplifier and a woofer..I can do all of these without humming the factory source...
thanks for your help
thanks for your help