Using portable as a home console

[MODDEDbyME]

I wanted my portable n64 to be able to be used as a home console also, so i was wondering how i could make a switch to switch between wall power and the battery power.

 

[ToastBucket]

look in the stickies. Read every single page in the stickies 100000000000000000000 times before asking another question in here.