Are those something a beginner can install easily? I have no clue about suspension/exhaust. Also one quick question from you guys, I was gonna get a shop to install a original GM remote, to unlock the doors/trunk. But apparently if they install that my radio wont work? My car did not come with the remote or the original radio face so I have no clue. Any cheaper way to get a remote that does that? I asked the shop and said I would probably need to get a aftermarket one that can cost $200-$300.