How involved is it to replace sunroof seal and the headliner? I have alot of wind noise at speed and leak under high pressure (ie. car wash). My headliner is ripped in several spots, and if i replace it, i can wire in the newer sunroof switch/dome lights at the same time. I got a quote of $300 to install after i wire the switch in, but if its not too bad of a job, ill attempt it myself. Thanx, Adam B