There certainly isn't an easy way, but I'm sure you could engineer something if you really, really wanted to. The entire audio system was overhauled with the 2007 cars.
I also own both a pre- and post-facelift car, and never noticed the difference. I'll have to pay closer attention now that you mentioned it. I do enjoy the tone of the sounds in my 2006 car, but didn't realise they changed in newer one.
I also own both a pre- and post-facelift car, and never noticed the difference. I'll have to pay closer attention now that you mentioned it. I do enjoy the tone of the sounds in my 2006 car, but didn't realise they changed in newer one.