i wouldnt, but its up to you, its hard to go wrong, if you follow what i said ( print it out if you cant remember it!). The main problem with replacing door speakers ( if they are for the doors, you havn't said!) is the phisical depth of the spks, my experience of ice fitters is not at all good, its better to do it yourself, then you know what has been done and how to sort it if there is a problem.