Need instructions on how to replace the "side marker" bulb. Does anyone have the manual PDF?

Search for topix, the Jag reference site. You'll be able to download it from there.

There was a thread in here about it maybe 2 years ago. I can remember because I replaced my orange lights with blue/white ones. It is a production because you have to take the headlight assembly out to do it but if butterfingers me can do it, anyone can.

The turn signal indicator repeater lamps are located in each front fender and can be removed by
sliding the lamp assembly rearwards and releasing the front edge from the fender. The lamps use a
5W capless bulb which is located in a holder in the rear of the lamp housing.