Just bright the car this week and it sounds like it needs new back shocks and I would like to replace them myself but I dont know what I need to buy as far as the parts.....I think it had electronically adjustable shocks.
Also.... The radio antenna doesn't go down

 

You probably need damper bushes and isolators more than you need the actual dampers.

Even if you need the dampers themselves you should replace all the soft mounting components.

CATS suspension parts can get pretty pricey in a hurry.

Plenty of opinions on how to get the dampers in and out of the rear suspension.
I have posted my method but some like to lower the suspension for access (too much work for me!!)

I like my BEND THE PLATE procedure.

bob gauff

 

I'm not familiar with this site