Can you please share your demand as well as what brand/model the speakers are so i can check its reviews on google and get back to you.
How is the output of your Kenwood speakers (model?) compared to the stock speakers?
I am interested in the stock speakers because from what i have read from other threads, many people who added rear speakers were not satisfied with the output because the output of the stock speakers were much better. Here are a few reviews to give an example
There are only 1 pair of speakers factory installed in the front doors and we are looking to add speakers in the space given in the rear doors.