Anyone know the specs on the JBL amp in a Toyota Camry (2009)?

[AtomicMike]

I'm replacing the radio in my 2009 Camry (speakers as well), I thinking of getting the Sony MEX-XB100BT because of the included amp, 5 volt pre, 10 band eq and sound tuning functions. And not to mention price!!! I'm not sure if I should just use the factory JBL amp or the included amp that comes with the Sony. At the moment I'm just going to replace my stock speakers with some 6x9's (around 50-70 watts rms, not sure on the brand yet..) If anyone can give me info on this amp it would be great. I am also open to suggestions.