Is there any way to get rid of interior scratches on the interior alluminum part? Please help.

I don't think so...if you are really desperate and don't care if you mess it up, try a really fine grit sand paper and sand with the grain of the aluminum...no guarantee but if you have to do it...
perhaps just order new parts if you mess it up...

how deep is it?? well just try using some fine steel wool and stoke with the direction of the grains hopefully it will make a nice pattern.

isnt there repalcements?? The silver cover on the side of my door is in pretty bad shape from the last owner, can that just be replaced?

What do you mean by "cover on the side of the door"? Is that the aluminum trim around the speaker or the door handle? If it's the speaker, you might want to just consider replacing it altogether with an aftermarket system since the Bose system isn't that great.

There are several fine scratches on the center console.... and on the driver side door handle there is a large deep scratch. If I need to order those.... what is a good place to buy??

door grips

http://www.trademotion.com/partlocat...=6&catalogid=2

gl

Can you touch it up maybe? I don't know if a body shop could do a touch up job or full repaint for you. It's probably not that expensive because its such a small surface area. The main problem would be in prepping the surface and masking the rest of the door...