is it possible............

2 make your PS button to glow red

if so how?

Yes, google it. Ive seen it done!

http://www.engadget.com/2007/01/02/sixaxis-controller-gets-a-blue-led-makeover/

stick a LED in there? im sure it could be done, but it wouldnt be that easy, and if your asking here i doubt you know enough about electronics to do it.

try looking on the internet to see what controller mods for the ps3 have been done

http://ec2.images-amazon.com/images/P/B000K1CS5Y.01-A23NLORBGXOLEO._AA280_SCLZZZZZZZ_V36371866_.jpg

something like that. Is it a modd or is it built in?