I am not much of a mechanic. Just wondering how hard it is to work on taillights. I want to re-hook up my backup lights. Looks like I have to take off the whole bottom piece at the rear (under the bumper) in order to get access to the rear of the taillights. Just wondering if this is easy to take off and get back on etc. Will it give me considerably greater access to the rear of the light fixture, or should I just try to undue the nut on the fixture and then work through the light hole? My alternative is just to leave the backup lights as non-functioning. I am sort of weighing this out versus the pain of re-hooking them up. (They had been replaced by another red light). Thanks.