1) My OBC works and lights up but the buttons no longer light up...in the dark the screen is the only thing that works...can that be fixed by replacing a bulb or does the whole unit need to be replaced?

2) My sunroof switch no longer lights up...I took the unit apart and noticed that the light bulb was pretty much wired into the unit...am I wrong?

can it be fixed or does the whole unit need to be replaced?

3) My rear passenger window switch no longer lights up...does the whole door panel need to removed to fix this problem?

does the whole unit (switch) need to be replaced or is there a light bulb I can swap out?

4) I get a clinking clunking noise when my transmission shits into gear...more noticeable in low gears than high as I assume the road noise is minimal.
I check the trans mount and all four look fine and the engine mount looks fine as well...

What could the problem be? i have never flushed the transmission as I heard from the stealer ship that it has a lifetime fluid and if I change it will begin to slip

5) What kind of spark plugs should I use? I have the platinum +4 right now but I hear that these cars were no designed for that kind of plug and it may run too cold...does that make sense?

if so what kind of plug should I use?

6) Thanks for all the help over the years gentlemen...you have made it a pleasure to own and work on this car...I hope everyone is having a wonderful day with their loved ones and I wish everyone happy holidays!!!!!