Battery is 10Ah. Honestly don't know the alternator output. If you need to find the stock draw (parasitic load), start it up, turn everything on and put an amp clamp on the +ve battery lead. Add 15-20%. That is the load.
the 07 has a (switched) accessory connector taped under the tank (go on Utube for many excellent explanations to access this). This is 2A. Perfect for a phone/GPS, but you have to get proper cables to convert from the connector to USB
Once you know how much load you have available, you can work out how much you can add. Not sure what you mean by power block. If you mean the plastic connectors referred to as `chocolate blocks' the answer is no, they are not sturdy enough. You probably have enough room to use ring type connectors
Not sure the above is definitive enough for you. Call back if you need.
the 07 has a (switched) accessory connector taped under the tank (go on Utube for many excellent explanations to access this). This is 2A. Perfect for a phone/GPS, but you have to get proper cables to convert from the connector to USB
Once you know how much load you have available, you can work out how much you can add. Not sure what you mean by power block. If you mean the plastic connectors referred to as `chocolate blocks' the answer is no, they are not sturdy enough. You probably have enough room to use ring type connectors
Not sure the above is definitive enough for you. Call back if you need.