Best thing is not to bother.

You are 4 times more likely to crash when using a mobile phone while driving and has been proven to be more dangerous than drink driving. That includes hands free use as well.

So best advise is when behind the steering wheel either turn the phone off or lock it in the boot. Then peeps can send you messages and you can stop at a nice roadside cafe for a brew and return their calls

I've done a bit of digging and it would appear that rSAP is rare as hen's teeth.

Firstly it was developed by Nokia, is not deemed essential to the Bluetooth standard and thus not subject to FRAND licensing. Thus it costs other manufacturers an arm and a leg to license it from Nokia and most choose not to.

Secondly, while it is fairly common for European cars (Ok, specifically German cars) to adopt rSAP as the interface standard, it's pretty much unheard of elsewhere in the world. As I cannot see any advantage in using rSAP over the Headset / Car profile for a vehicle's Bluetooth implementation, I cannot say that I am surprised.

So a costly addition to a device that's only required by a very small percentage of the global market for phones. Hardly surprising that it's rare.

You might find that the Nokia Windows smartphones have it. The only place I can find where it definitively does exist is that there is an Android app which will add it to rooted devices (may be Samsung device specific though). Allegedly the Samsung Android 4.0.4 ROMs have it natively, but that's still to be confirmed.

Yes, we had this issue with the supposedly 'premium' car kit. This is what I found:

2. Refurb Nokia N86s are available on places such as amazon and play.com, but have very short warranties. They can even be bought new but at quite a ridiculous price considering they are so old.

3. There are a couple of Android phones that are compatible with RSAP - specifically the Samsung Galaxy S and the Samsung Galaxy S2. Having an Android phone will obviously give xxx much more functionality with e-mail, calendaring and internet access.

In the end, the lease on this car is not far off so the user decided to wait and have the iPhone he wanted on the next car and make do with the basic Nokia 6300 for the time being.