Dog peeing outside crate and not

[ceggiepooh]

We have a 7 month old Doberman this is really strange.   If we have the crate inside the house and we leave to go to store he always pees outside of his crate.     BUT..... if we take the crate and put on porch outside and go to store and return he does not pee at all.   We can not figure it out of why he does it when he is crated inside and does not do it outside.     When we crate him inside we leave tv on for him.
 

any suggestions ??