I recently installed the Sony 565RF 10 disc mp3 change that goes through the radio.. it's not bad.. and it's a good option if you want to keep your existing stereo.... check it out.. I got it on ebay for about $210

Dear ....,Thank you for contacting Pontiac! The 4 speed automatic is not designed to handle the tourque of the highoutput engine. Its not heavy duty enough to handle the stresses long term and offer warrantable expectations of durability with the higher output engine.The high performance of the GT c...

here are some suggestions:- an automatic transmission version for the GT? (silly, unless you live in the city!)- an MP3 car stereo

As users of their product, let's share some feedback as to how to improve the product!