It's possible in the front doors but the back doors are bad because of how far they open and hinge design. I had wires into my fronts on my last 1000 but back proved very difficult. I'm not sure if you already have speaks but the jeep soundbars are lightweight work excellent and are totally out of the way. You can sometimes find them for 100 or less and some come amplified if so desired. Mount very easily. I have one front and rear I did replace the 6 1/2's but not necessary
View attachment 18017. If you do deside to do the doors you can foam the hinge area in the doors to substantially strengthen them