Sony CDX-R6550 Car CD/ MP3 Player

I have bought this player to replace the Concert system in my Audi A3 which has a standard Bose system fitted. Although it initially sounded great, after fitting this Sony model I have been experiencing a bass massage to my back :)
Quick overview of the system:

Pros:
Great looks, not too funky. Toned red/white illumination
Excellent sound quality with low/med/hi frequency equaliser + standard presets
Great Xplod preset - really kicks if you have a subwoofer fitted
Excellent power output
Fast CD reading

Cons:
Not really ... except that this model is now discontinued