decoder for interior lighting?

[erider2002]

Mr. Bachmnann ( or any other DCC guru ),
I have been up-grading some of my DCC equiped locos to soundtraxx decoders, and I want to use the leftover bachmann decoders that were removed for lighting my passenger cars. First question is can I do this? Second question is if I can, which pins need to be wired where, which voltage lights should I use or can I use LEDs? should I use the F10 function for control or can I assign a separate function? Thanks for any help. Paul