Well be fitting a new stereo into my mates mk1 mr2 this week and as part of the plan were going to try to soundproof as much as we can. Now I did this in my old clio and couldnt really notice any difference but I may have done it wrong...
For a door, where is the best place to apply the soundproofing material? Should it just go on the metal inner skin of the door? Also if we use a few layers of flashing tape rather than expensive soundproofing, will this give us a same effect?
Alternatively, is it all just a waste of time?!