Anyone replace their Shaker500 head unit w/another unit such as Pioneer FH-P4200MP? Does the stock amp work with it. I'm getting a little impatient waiting for a iPod connection for the Shaker500. I started looking at possible replacements. I would like to keep it stock as much as possible. I've found the following:

Pioneer FH-P4200MP headunit (2DIN)
Pioneer CD-IB100 iPod connector
Pioneer GM-6100F amp

Can I go with the stock amp instead of the Pioneer amp?