is there any easy ways to get the backseat on and off of a 2000 SLE,i liked how my sound system sounded in my old car with the seats down and i want that same effect with my bonneville

Lift up and remove seat bottom.

Remove the two bolts holding down the seats belts. 18mm or something right around that range. Then, undo the clips holding on the rear seat back. They are kina a pita to do, but can be done easily with the proper tools.

Then.... your done!