New (to me) '07 911 - aftermarket & other ?s

[Rambler]

Just picked up an '07 Carrera coupe, manual with 13k on the odo, and it's my 1st Porsche. A really fun car to drive! I have no nav, Bluetooth or CD changer options though, and I'd like to add these.

So my first question - is there an aftermarket audio/Nav unit with Bluetooth that can replace the existing PCM? If not, I guess an external Garmin nav unit would suit me for that, but having the nav's audio routed to the speakers would be preferable. And I'd also like to have Bluetooth connectivity wired into the existing speakers for my cell if possible, any recommendations for this?

I'm also noticing I need to be quite careful in my driveway or extra large dips in the road, to keep from scraping the front end spoiler. I've found crossing at an angle helps some, but the scraping still occurs. Have others done anything else to prevent or reduce the front end scraping?

Last question - this car is a base 911 (not the S or 4S). Is there anything I need to be aware or concerned with (aside from speeding tickets - LOL)? Thanks in advance for any info.

[rgdalacrity]

I had to replace the front spoiler twice. I gave up and now I drive my car without the spoiler. I have a 2007S.