Let me know how that one works. That's the next piece I'm after for is the FM transmitter to hook into the car. I need to upgrade the speakers in the car as well, so maybe upgrading the deck isn't such a bad idea either, but I'd rather put the money into the speakers if I can get a decent FM transmitter.
Hey MORGBUG, I've finally got my Kensington FM Transmitter. My first impression is that it is very good. I had a Belkin transmitter for my video iPod (a piece of crap) and a Griffin iTrip for my iPod Mini (not bad, but not great either), but this Kensington model is terrific. I like the fact that it plugs into 12v adaptor, drawing power from there instead of the iPod, which is what the iTrip and Belkin models do. I had to find an empty station that gave the best quality, but I was impressed with the clarity and volume. The digital tuner also allows for easier programming, and it allows up to three preset settings in case the sound isn't the best on the default station.
These are just my first impressions, so I'll post more as I spend more time with it. Overall impression is favorable. This transmitter may prevent me from spending the big bucks to replace two car stereos.
EDIT 8/3/2007 - I'll just edit my last post since I was the last person to post here. in short, I've have the transmitter for a while now, and it is exactly what I would hope for. No need to buy a new stereo with an input jack, since this transmitter works perfectly. The sound is clear and I can blast my speakers without any static. For some reason the transmitter does not tune to any FM frequency of 87 FM. These stations are ideal in most area. However, I read online that there is an "easter egg" in tuning that frequency. I haven't had to use the 87 FM freq yet, but it's good info to know for trips and such. HIGHLY RECOMMEND THIS PRODUCT! It will work with any iPod that uses the bottom input female plug, like the mini, Nano, and Video iPods.