I upgraded the 6x9 speakers in all of the 2nd gen Camaros that I have owned. I even got conned into doing a few buddies. Never had the front seats removed in any of them. I always slide the front seats up as far as they will go and then get in the back. Banging the seats in with my knees always seemed to work.
I've found it fairly easy to remove and reinstall them. Push back and lift out. Then, lay them back in place, push back and hook them to the floor.
After all, the auto workers popped them in all day on the assembly line. You don't have to read far to find people bad mouthing the workers who built the cars, so if they can do it all day during their shift, we should be able to do it once in a decade or two
Im extremely visual...I would need to see to understand. So adjust the front seat you mean the front passenger or driver seat? Then you squat sideways meaning your between the front seat and lower bottom seat facing the rear quarter panel and then hip check the cushion pushing down. Do i make sense?