If this is a recent (1 or 2 days ago), there is a possible solution that might work. This also works with many cellphones. As you should know, the Stiletto 100 has a removable battery. seperate the battery from the Sirius Player. Get a tupperware bowl and fill it about halfway or so with dry rice. Place Battery and player in the rice and completely cover with the rice. Leave Battery and player in rice for 24-48 hours. After this time period, replace battery and start it up. If not working, give it another 24 hours. If after the extra 24 hours it still doesn't work, you may have damaged it beyond repair and you may have to consider buying a new one. If this event happened more then a few days ago, there may be ongoing damage to circuit boards and such and this damage may be irreversible. You should consider either taking in for repair or replacement. This is a better option if you have a no-questions-asked replacement plan. Some electronics stores have a service plan in which they will completely replace a damaged device, even if the damage was your fault and/or completely intentional. These plans aren't cheap, ranging anywhere from 20 bucks for cheaper devices to $100+ for more expensive devices, but should you damage your device for whatever reason, including acts of god, they will completely replace with no questions asked. Some stores don't even require you to have all the parts available, although some do, so you have to ask if you aren't sure. If you have the money, I would also recommend getting the plan for the replacement as well.
Here is a link to a video about how to dry out cellphones. This is the method I am talking about and it explains the process a tiny bit better. Site:
http://www.switched.com/2007/08/15/how-to-save-a-wet-cell-phone/
I hope this information helps.