[Booch]

I found that hard wiring my aftermarket Sirius radio, with an fm modulator, right to the battery allowed me to keep it on overnight ( just the radio, not the modulator)....there is a 1.5 hour buffer memory that fills up on the dash mounted units, and this fills up overnight.

I listen to Howard stern in the morning, and as I drive into work, I fast forward through every commercial: worth the cost of Sirius right there! I do this to any talk radio show Sirius carries, and haven't listened to a commercial for over a year now!

Haven't had a battery issue yet, but I only do this when I know I'll be driving again within 24 hours.